Document

<SQL terminal character> ::=
  <SQL language character> 

<SQL language character> ::=
    <simple Latin letter> 
  | <digit> 
  | <SQL special character> 

<simple Latin letter> ::=
    <simple Latin upper case letter> 
  | <simple Latin lower case letter> 

<simple Latin upper case letter> ::=
    A | B | C | D | E | F | G | H | I | J | K | L | M | N | O
  | P | Q | R | S | T | U | V | W | X | Y | Z

<simple Latin lower case letter> ::=
    a | b | c | d | e | f | g | h | i | j | k | l | m | n | o
  | p | q | r | s | t | u | v | w | x | y | z

<digit> ::=
    0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9

<SQL special character> ::=
    <space> 
  | <double quote> 
  | <percent> 
  | <ampersand> 
  | <quote> 
  |   <left paren> 
  |   <right paren> 
  |   <asterisk> 
  |   <plus sign> 
  |   <comma> 
  |   <minus sign> 
  |   <period> 
  |   <solidus> 
  |   <colon> 
  |   <semicolon> 
  |   <less than operator> 
  |   <equals operator> 
  |   <greater than operator> 
  |   <question mark> 
  |   <left bracket> 
  |   <right bracket> 
  |   <circumflex> 
  |   <underscore> 
  |   <vertical bar> 
  |   <left brace> 
  |   <right brace> 

<space> ::=
  !! See the Syntax Rules

<double quote> ::=
  "

<percent> ::=
  %

<ampersand> ::=
  &

<quote> ::=
  '

<left paren> ::=
  (

<right paren> ::=
  )

<asterisk> ::=
  *

<plus sign> ::=
  +

<comma> ::=
  ,

<minus sign> ::=
  -

<period> ::=
  .

<solidus> ::=
 /

<reverse solidus> ::=
  \

<colon> ::=
  :

<semicolon> ::=
  ;

<less than operator> ::=
  <

<equals operator> ::=
  =

<greater than operator> ::=
  >

<question mark> ::=
  ?

<left bracket or trigraph> ::=
    <left bracket> 
  | <left bracket trigraph> 

<right bracket or trigraph> ::=
    <right bracket> 
  | <right bracket trigraph> 

<left bracket> ::=
  [

<left bracket trigraph> ::=
  ??(

<right bracket> ::=
  ]

<right bracket trigraph> ::=
  ??)

<circumflex> ::=
  ^

<underscore> ::=
  _

<vertical bar> ::=
  |

<left brace> ::=
  {

<right brace> ::=
  }

<token> ::=
    <nondelimiter token> 
  | <delimiter token> 

<nondelimiter token> ::=
    <regular identifier> 
  | <key word> 
  | <unsigned numeric literal> 
  | <national character string literal> 
  | <binary string literal> 
  | <large object length token> 
  | <Unicode delimited identifier> 
  | <Unicode character string literal> 
  | <SQL language identifier> 

<regular identifier> ::=
  <identifier body> 

<identifier body> ::=
  <identifier start>  [ <identifier part> ... ]

<identifier part> ::=
    <identifier start> 
  | <identifier extend> 

<identifier start> ::=
  !! See the Syntax Rules

<identifier extend> ::=
  !! See the Syntax Rules

<large object length token> ::=
  <digit> ... <multiplier> 

<multiplier> ::=
    K
  | M
  | G
  | T
  | P

<delimited identifier> ::=
  <double quote>  <delimited identifier body>  <double quote> 

<delimited identifier body> ::=
  <delimited identifier part> ...

<delimited identifier part> ::=
    <nondoublequote character> 
  | <doublequote symbol> 

<Unicode delimited identifier> ::=
  U<ampersand> <double quote>  <Unicode delimiter body>  <double quote> 
      <Unicode escape specifier> 

<Unicode escape specifier> ::=
  [ UESCAPE <quote> <Unicode escape character> <quote>  ]

<Unicode delimiter body> ::=
  <Unicode identifier part> ...

<Unicode identifier part> ::=
    <delimited identifier part> 
  | <Unicode escape value> 

<Unicode escape value> ::=
    <Unicode 4 digit escape value> 
  | <Unicode 6 digit escape value> 
  | <Unicode character escape value> 

<Unicode 4 digit escape value> ::=
  <Unicode escape character> <hexit> <hexit> <hexit> <hexit> 

<Unicode 6 digit escape value> ::=
  <Unicode escape character> <plus sign> 
      <hexit> <hexit> <hexit> <hexit> <hexit> <hexit> 

<Unicode character escape value> ::=
  <Unicode escape character> <Unicode escape character> 

<Unicode escape character> ::=
  !! See the Syntax Rules

<nondoublequote character> ::=
  !! See the Syntax Rules

<doublequote symbol> ::=
  "" !! two consecutive double quote characters

<delimiter token> ::=
    <character string literal> 
  | <date string> 
  | <time string> 
  | <timestamp string> 
  | <interval string> 
  | <delimited identifier> 
  | <SQL special character> 
  | <not equals operator> 
  | <greater than or equals operator> 
  | <less than or equals operator> 
  | <concatenation operator> 
  |   <right arrow> 
  |   <left bracket trigraph> 
  |   <right bracket trigraph> 
  |   <double colon> 
  |   <double period> 

<not equals operator> ::=
  <<, <> >>

<greater than or equals operator> ::=
  >=

<less than or equals operator> ::=
  <=

<concatenation operator> ::=
  ||

<right arrow> ::=
  ->

<double colon> ::=
  ::

<double period> ::=
  ..

<separator> ::=
  { <comment>  | <white space>  }...

<white space> ::=
  !! See the Syntax Rules

<comment> ::=
    <simple comment> 
  | <bracketed comment> 

<simple comment> ::=
  <simple comment introducer>  [ <comment character> ... ] <newline> 

<simple comment introducer> ::=
  <minus sign> <minus sign> 

<bracketed comment> ::=
  <bracketed comment introducer> 
      <bracketed comment contents> 
      <bracketed comment terminator> 

<bracketed comment introducer> ::=
  /*

<bracketed comment terminator> ::=
  */

<bracketed comment contents> ::=
  !! See the Syntax Rules
      [ { <comment character>  | <separator>  }... ]

<comment character> ::=
    <nonquote character> 
  | <quote> 

<newline> ::=
  !! See the Syntax Rules

<key word> ::=
    <reserved word> 
  | <non-reserved word> 

<non-reserved word> ::=
    A | ABSOLUTE | ACTION | ADA | ADD | ADMIN | AFTER | ALWAYS | ASC
  | ASSERTION | ASSIGNMENT | ATTRIBUTE | ATTRIBUTES

  | BEFORE | BERNOULLI | BREADTH

  |   C | CASCADE | CATALOG | CATALOG_NAME | CHAIN | CHARACTER_SET_CATALOG
  |   CHARACTER_SET_NAME | CHARACTER_SET_SCHEMA | CHARACTERISTICS | CHARACTERS
  |   CLASS_ORIGIN | COBOL | COLLATION | COLLATION_CATALOG | COLLATION_NAME | COLLATION_SCHEMA
  |   COLUMN_NAME | COMMAND_FUNCTION | COMMAND_FUNCTION_CODE | COMMITTED
  |   CONDITION_NUMBER | CONNECTION | CONNECTION_NAME | CONSTRAINT_CATALOG | CONSTRAINT_NAME
  |   CONSTRAINT_SCHEMA | CONSTRAINTS | CONSTRUCTOR | CONTAINS | CONTINUE | CURSOR_NAME

  | DATA | DATETIME_INTERVAL_CODE | DATETIME_INTERVAL_PRECISION | DEFAULTS | DEFERRABLE
  | DEFERRED | DEFINED | DEFINER | DEGREE | DEPTH | DERIVED | DESC | DESCRIPTOR
  | DIAGNOSTICS | DISPATCH | DOMAIN | DYNAMIC_FUNCTION | DYNAMIC_FUNCTION_CODE

  | EQUALS | EXCLUDE | EXCLUDING

  | FINAL | FIRST | FLAG | FOLLOWING | FORTRAN | FOUND

  | G | GENERAL | GENERATED | GO | GOTO | GRANTED

  | HIERARCHY

  | IMMEDIATE | IMPLEMENTATION | INCLUDING | INCREMENT | INITIALLY | INPUT | INSTANCE
  | INSTANTIABLE | INVOKER | ISOLATION

  | K | KEY | KEY_MEMBER | KEY_TYPE

  | LAST | LENGTH | LEVEL | LOCATOR

  | M | MAP | MATCHED | MAXVALUE | MESSAGE_LENGTH | MESSAGE_OCTET_LENGTH
  | MESSAGE_TEXT | MINVALUE | MORE | MUMPS

  | NAME | NAMES | NESTING | NEXT | NFC | NFD | NFKC | NFKD
  | NORMALIZED | NULLABLE | NULLS | NUMBER

  | OBJECT | OCTETS | OPTION | OPTIONS | ORDERING | ORDINALITY | OTHERS
  | OUTPUT | OVERRIDING

  |   P | PAD | PARAMETER_MODE | PARAMETER_NAME | PARAMETER_ORDINAL_POSITION
  |   PARAMETER_SPECIFIC_CATALOG | PARAMETER_SPECIFIC_NAME | PARAMETER_SPECIFIC_SCHEMA
  |   PARTIAL | PASCAL | PATH | PLACING | PLI | PRECEDING | PRESERVE | PRIOR
  |   PRIVILEGES | PUBLIC

  | READ | RELATIVE | REPEATABLE | RESTART | RESTRICT | RETURNED_CARDINALITY
  | RETURNED_LENGTH | RETURNED_OCTET_LENGTH | RETURNED_SQLSTATE | ROLE
  | ROUTINE | ROUTINE_CATALOG | ROUTINE_NAME | ROUTINE_SCHEMA | ROW_COUNT

  | SCALE | SCHEMA | SCHEMA_NAME | SCOPE_CATALOG | SCOPE_NAME | SCOPE_SCHEMA

  | SECTION | SECURITY | SELF | SEQUENCE | SERIALIZABLE | SERVER_NAME | SESSION
  | SETS | SIMPLE | SIZE | SOURCE | SPACE | SPECIFIC_NAME | STATE | STATEMENT
  | STRUCTURE | STYLE | SUBCLASS_ORIGIN

  | T | TABLE_NAME | TEMPORARY | TIES | TOP_LEVEL_COUNT | TRANSACTION
  | TRANSACTION_ACTIVE | TRANSACTIONS_COMMITTED | TRANSACTIONS_ROLLED_BACK
  | TRANSFORM | TRANSFORMS | TRIGGER_CATALOG | TRIGGER_NAME | TRIGGER_SCHEMA | TYPE

  | UNBOUNDED | UNCOMMITTED | UNDER | UNNAMED | USAGE | USER_DEFINED_TYPE_CATALOG
  | USER_DEFINED_TYPE_CODE | USER_DEFINED_TYPE_NAME | USER_DEFINED_TYPE_SCHEMA

  | VIEW

  | WORK | WRITE

  | ZONE

<reserved word> ::=
    ABS | ALL | ALLOCATE | ALTER | AND | ANY | ARE | ARRAY | AS | ASENSITIVE
  | ASYMMETRIC | AT | ATOMIC | AUTHORIZATION | AVG

  | BEGIN | BETWEEN | BIGINT | BINARY | BLOB | BOOLEAN | BOTH | BY

  |   CALL | CALLED | CARDINALITY | CASCADED | CASE | CAST | CEIL | CEILING
  |   CHAR | CHAR_LENGTH | CHARACTER | CHARACTER_LENGTH | CHECK | CLOB | CLOSE
  |   COALESCE | COLLATE | COLLECT | COLUMN | COMMIT | CONDITION | CONNECT
  |   CONSTRAINT | CONVERT | CORR | CORRESPONDING | COUNT | COVAR_POP | COVAR_SAMP
  |   CREATE | CROSS | CUBE | CUME_DIST | CURRENT | CURRENT_CATALOG | CURRENT_DATE
  |   CURRENT_DEFAULT_TRANSFORM_GROUP | CURRENT_PATH | CURRENT_ROLE | CURRENT_SCHEMA
  |   CURRENT_TIME | CURRENT_TIMESTAMP | CURRENT_TRANSFORM_GROUP_FOR_TYPE
  |   CURRENT_USER | CURSOR | CYCLE

  | DATE | DAY | DEALLOCATE | DEC | DECIMAL | DECLARE | DEFAULT | DELETE
  | DENSE_RANK | DEREF | DESCRIBE | DETERMINISTIC | DISCONNECT | DISTINCT
  | DOUBLE | DROP | DYNAMIC

  | EACH | ELEMENT | ELSE | END | END-EXEC | ESCAPE | EVERY | EXCEPT | EXEC
  | EXECUTE | EXISTS | EXP | EXTERNAL | EXTRACT

  | FALSE | FETCH | FILTER | FLOAT | FLOOR | FOR | FOREIGN | FREE | FROM
  | FULL | FUNCTION | FUSION

  | GET | GLOBAL | GRANT | GROUP | GROUPING

  | HAVING | HOLD | HOUR

  | IDENTITY | IN | INDICATOR | INNER | INOUT | INSENSITIVE | INSERT
  | INT | INTEGER | INTERSECT | INTERSECTION | INTERVAL | INTO | IS

  | JOIN

  | LANGUAGE | LARGE | LATERAL | LEADING | LEFT | LIKE | LIKE_REGEX
  | LN | LOCAL | LOCALTIME | LOCALTIMESTAMP | LOWER

  | MATCH | MAX | MEMBER | MERGE | METHOD | MIN | MINUTE
  | MOD | MODIFIES | MODULE | MONTH | MULTISET

  | NATIONAL | NATURAL | NCHAR | NCLOB | NEW | NO | NONE | NORMALIZE | NOT
  | NULL | NULLIF | NUMERIC

  | OCTET_LENGTH | OCCURRENCES_REGEX | OF | OLD | ON | ONLY | OPEN | OR
  | ORDER | OUT | OUTER | OVER | OVERLAPS | OVERLAY

  | PARAMETER | PARTITION | PERCENT_RANK | PERCENTILE_CONT | PERCENTILE_DISC
  | POSITION | POSITION_REGEX | POWER | PRECISION | PREPARE | PRIMARY
  | PROCEDURE

  |    RANGE | RANK | READS | REAL | RECURSIVE | REF | REFERENCES | REFERENCING
  |    REGR_AVGX | REGR_AVGY | REGR_COUNT | REGR_INTERCEPT | REGR_R2 | REGR_SLOPE
  |    REGR_SXX | REGR_SXY | REGR_SYY | RELEASE | RESULT | RETURN | RETURNS
  |    REVOKE | RIGHT | ROLLBACK | ROLLUP | ROW | ROW_NUMBER | ROWS

  |    SAVEPOINT | SCOPE | SCROLL | SEARCH | SECOND | SELECT | SENSITIVE
  |    SESSION_USER | SET | SIMILAR | SMALLINT | SOME | SPECIFIC | SPECIFICTYPE
  |    SQL | SQLEXCEPTION | SQLSTATE | SQLWARNING | SQRT | START | STATIC
  |    STDDEV_POP | STDDEV_SAMP | SUBMULTISET | SUBSTRING | SUBSTRING_REGEX | SUM
  |    SYMMETRIC | SYSTEM | SYSTEM_USER

  | TABLE | TABLESAMPLE | THEN | TIME | TIMESTAMP | TIMEZONE_HOUR | TIMEZONE_MINUTE
  | TO | TRAILING | TRANSLATE | TRANSLATE_REGEX | TRANSLATION | TREAT
  | TRIGGER | TRIM | TRUE

  | UESCAPE | UNION | UNIQUE | UNKNOWN | UNNEST | UPDATE                                     | UPPER | USER | USING

  | VALUE | VALUES | VAR_POP | VAR_SAMP | VARBINARY | VARCHAR | VARYING

  | WHEN | WHENEVER | WHERE | WIDTH_BUCKET | WINDOW | WITH | WITHIN | WITHOUT

  | YEAR

<literal> ::=
    <signed numeric literal> 
  | <general literal> 

<unsigned literal> ::=
    <unsigned numeric literal> 
  | <general literal> 

<general literal> ::=
    <character string literal> 
  | <national character string literal> 
  | <Unicode character string literal> 
  | <binary string literal> 
  | <datetime literal> 
  | <interval literal> 
  | <boolean literal> 

<character string literal> ::=
  [ <introducer> <character set specification>  ]
      <quote>  [ <character representation> ... ] <quote> 
      [ { <separator>  <quote>  [ <character representation> ... ] <quote>  }... ]

<introducer> ::=
  <underscore> 

<character representation> ::=
    <nonquote character> 
  | <quote symbol> 

<nonquote character> ::=
  !! See the Syntax Rules.

<quote symbol> ::=
  <quote> <quote> 

<national character string literal> ::=
  N <quote>  [ <character representation> ... ]
      <quote>  [ { <separator>  <quote>  [ <character representation> ... ] <quote>  }... ]

<Unicode character string literal> ::=
  [ <introducer> <character set specification>  ]
      U<ampersand> <quote>  [ <Unicode representation> ... ] <quote> 
      [ { <separator>  <quote>  [ <Unicode representation> ... ] <quote>  }... ]
      <Unicode escape specifier> 

<Unicode representation> ::=
    <character representation> 
  | <Unicode escape value> 

<binary string literal> ::=
  X <quote>  [ <space> ... ] [ { <hexit>  [ <space> ... ] <hexit>  [ <space> ... ] }... ] <quote> 
      [ { <separator>  <quote>  [ <space> ... ] [ { <hexit>  [ <space> ... ]
      <hexit>  [ <space> ... ] }... ] <quote>  }... ]

<hexit> ::=
    <digit>  | A | B | C | D | E | F | a | b | c | d | e | f

<signed numeric literal> ::=
  [ <sign>  ] <unsigned numeric literal> 

<unsigned numeric literal> ::=
    <exact numeric literal> 
  | <approximate numeric literal> 

<exact numeric literal> ::=
    <unsigned integer>  [ <period>  [ <unsigned integer>  ] ]
  | <period>  <unsigned integer> 

<sign> ::=
    <plus sign> 
  | <minus sign> 

<approximate numeric literal> ::=
  <mantissa>  E <exponent> 

<mantissa> ::=
  <exact numeric literal> 

<exponent> ::=
  <signed integer> 

<signed integer> ::=
  [ <sign>  ] <unsigned integer> 

<unsigned integer> ::=
  <digit> ...

<datetime literal> ::=
    <date literal> 
  | <time literal> 
  | <timestamp literal> 

<date literal> ::=
  DATE <date string> 

<time literal> ::=
  TIME <time string> 

<timestamp literal> ::=
  TIMESTAMP <timestamp string> 

<date string> ::=
  <quote>  <unquoted date string>  <quote> 

<time string> ::=
  <quote>  <unquoted time string>  <quote> 

<timestamp string> ::=
  <quote>  <unquoted timestamp string>  <quote> 

<time zone interval> ::=
  <sign>  <hours value>  <colon>  <minutes value> 

<date value> ::=
  <years value>  <minus sign>  <months value>  <minus sign>  <days value> 

<time value> ::=
  <hours value>  <colon>  <minutes value>  <colon>  <seconds value> 

<interval literal> ::=
  INTERVAL [ <sign>  ] <interval string>  <interval qualifier> 

<interval string> ::=
  <quote>  <unquoted interval string>  <quote> 

<unquoted date string> ::=
  <date value> 

<unquoted time string> ::=
  <time value>  [ <time zone interval>  ]

<unquoted timestamp string> ::=
  <unquoted date string>  <space>  <unquoted time string> 

<unquoted interval string> ::=
  [ <sign>  ] { <year-month literal>  | <day-time literal>  }

<year-month literal> ::=
    <years value>  [ <minus sign>  <months value>  ]
  | <months value> 

<day-time literal> ::=
    <day-time interval> 
  | <time interval> 

<day-time interval> ::=
  <days value>  [ <space>  <hours value>  [ <colon>  <minutes value> 
      [ <colon>  <seconds value>  ] ] ]

<time interval> ::=
    <hours value>  [ <colon>  <minutes value>  [ <colon>  <seconds value>  ] ]
  | <minutes value>  [ <colon>  <seconds value>  ]
  | <seconds value> 

<years value> ::=
  <datetime value> 

<months value> ::=
  <datetime value> 

<days value> ::=
  <datetime value> 

<hours value> ::=
  <datetime value> 

<minutes value> ::=
  <datetime value> 

<seconds value> ::=
  <seconds integer value>  [ <period>  [ <seconds fraction>  ] ]

<seconds integer value> ::=
  <unsigned integer> 

<seconds fraction> ::=
  <unsigned integer> 

<datetime value> ::=
  <unsigned integer> 

<boolean literal> ::=
    TRUE
  | FALSE
  | UNKNOWN

<identifier> ::=
  <actual identifier> 

<actual identifier> ::=
    <regular identifier> 
  | <delimited identifier> 
  | <Unicode delimited identifier> 

<SQL language identifier> ::=
  <SQL language identifier start>  [ <SQL language identifier part> ... ]

<SQL language identifier start> ::=
  <simple Latin letter> 

<SQL language identifier part> ::=
    <simple Latin letter> 
  | <digit> 
  | <underscore> 

<authorization identifier> ::=
    <role name> 
  | <user identifier> 

<table name> ::=
  <local or schema qualified name> 

<domain name> ::=
  <schema qualified name> 

<schema name> ::=
  [ <catalog name>  <period>  ] <unqualified schema name> 

<unqualified schema name> ::=
  <identifier> 

<catalog name> ::=
  <identifier> 

<schema qualified name> ::=
  [ <schema name>  <period>  ] <qualified identifier> 

<local or schema qualified name> ::=
  [ <local or schema qualifier>  <period>  ] <qualified identifier> 

<local or schema qualifier> ::=
    <schema name> 
  | <local qualifier> 

<qualified identifier> ::=
  <identifier> 

<column name> ::=
  <identifier> 

<correlation name> ::=
  <identifier> 

<query name> ::=
  <identifier> 

<SQL-client module name> ::=
  <identifier> 

<procedure name> ::=
  <identifier> 

<schema qualified routine name> ::=
  <schema qualified name> 

<method name> ::=
  <identifier> 

<specific name> ::=
  <schema qualified name> 

<cursor name> ::=
  <local qualified name> 

<local qualified name> ::=
  [ <local qualifier>  <period>  ] <qualified identifier> 

<local qualifier> ::=
  MODULE

<host parameter name> ::=
  <colon>  <identifier> 

<SQL parameter name> ::=
  <identifier> 

<constraint name> ::=
  <schema qualified name> 

<external routine name> ::=
    <identifier> 
  | <character string literal> 

<trigger name> ::=
  <schema qualified name> 

<collation name> ::=
  <schema qualified name> 

<character set name> ::=
  [ <schema name>  <period>  ] <SQL language identifier> 

<transliteration name> ::=
  <schema qualified name> 

<transcoding name> ::=
  <schema qualified name> 

<schema-resolved user-defined type name> ::=
  <user-defined type name> 

<user-defined type name> ::=
  [ <schema name>  <period>  ] <qualified identifier> 

<attribute name> ::=
  <identifier> 

<field name> ::=
  <identifier> 

<savepoint name> ::=
  <identifier> 

<sequence generator name> ::=
  <schema qualified name> 

<role name> ::=
  <identifier> 

<user identifier> ::=
  <identifier> 

<connection name> ::=
  <simple value specification> 

<SQL-server name> ::=
  <simple value specification> 

<connection user name> ::=
  <simple value specification> 

<SQL statement name> ::=
    <statement name> 
  | <extended statement name> 

<statement name> ::=
  <identifier> 

<extended statement name> ::=
  [ <scope option>  ] <simple value specification> 

<dynamic cursor name> ::=
    <cursor name> 
  | <extended cursor name> 

<extended cursor name> ::=
  [ <scope option>  ] <simple value specification> 

<descriptor name> ::=
  [ <scope option>  ] <simple value specification> 

<scope option> ::=
    GLOBAL
  | LOCAL

<window name> ::=
  <identifier> 

<data type> ::=
    <predefined type> 
  | <row type> 
  | <path-resolved user-defined type name> 
  | <reference type> 
  | <collection type> 

<predefined type> ::=
    <character string type>  [ CHARACTER SET <character set specification>  ]
        [ <collate clause>  ]
  | <national character string type>  [ <collate clause>  ]
  | <binary string type> 
  | <numeric type> 
  | <boolean type> 
  | <datetime type> 
  | <interval type> 

<character string type> ::=
    CHARACTER [ <left paren>  <length>  <right paren>  ]
  | CHAR [ <left paren>  <length>  <right paren>  ]
  | CHARACTER VARYING <left paren>  <length>  <right paren> 
  | CHAR VARYING <left paren>  <length>  <right paren> 
  | VARCHAR <left paren>  <length>  <right paren> 
  | <character large object type> 

<character large object type> ::=
    CHARACTER LARGE OBJECT [ <left paren>  <large object length>  <right paren>  ]
  | CHAR LARGE OBJECT [ <left paren>  <large object length>  <right paren>  ]
  | CLOB [ <left paren>  <large object length>  <right paren>  ]

<national character string type> ::=
    NATIONAL CHARACTER [ <left paren>  <length>  <right paren>  ]
  | NATIONAL CHAR [ <left paren>  <length>  <right paren>  ]
  | NCHAR [ <left paren>  <length>  <right paren>  ]
  | NATIONAL CHARACTER VARYING <left paren>  <length>  <right paren> 
  | NATIONAL CHAR VARYING <left paren>  <length>  <right paren> 
  | NCHAR VARYING <left paren>  <length>  <right paren> 
  | <national character large object type> 

<national character large object type> ::=
    NATIONAL CHARACTER LARGE OBJECT [ <left paren>  <large object length>  <right paren>  ]
  | NCHAR LARGE OBJECT [ <left paren>  <large object length>  <right paren>  ]
  | NCLOB [ <left paren>  <large object length>  <right paren>  ]

<binary string type> ::=
    BINARY [ <left paren>  <length>  <right paren>  ]
  | BINARY VARYING <left paren>  <length>  <right paren> 
  | VARBINARY <left paren>  <length>  <right paren> 
  | <binary large object string type> 

<binary large object string type> ::=
    BINARY LARGE OBJECT [ <left paren>  <large object length>  <right paren>  ]
  | BLOB [ <left paren>  <large object length>  <right paren>  ]

<numeric type> ::=
    <exact numeric type> 
  | <approximate numeric type> 

<exact numeric type> ::=
    NUMERIC [ <left paren>  <precision>  [ <comma>  <scale>  ] <right paren>  ]
  | DECIMAL [ <left paren>  <precision>  [ <comma>  <scale>  ] <right paren>  ]
  | DEC [ <left paren>  <precision>  [ <comma>  <scale>  ] <right paren>  ]
  | SMALLINT
  | INTEGER
  | INT
  | BIGINT

<approximate numeric type> ::=
    FLOAT [ <left paren>  <precision>  <right paren>  ]
  | REAL
  | DOUBLE PRECISION

<length> ::=
  <unsigned integer>  [ <char length units>  ]

<large object length> ::=
    <unsigned integer>  [ <multiplier>  ] [ <char length units>  ]
  | <large object length token>  [ <char length units>  ]

<char length units> ::=
    CHARACTERS
  | OCTETS

<precision> ::=
  <unsigned integer> 

<scale> ::=
  <unsigned integer> 

<boolean type> ::=
  BOOLEAN

<datetime type> ::=
    DATE
  | TIME [ <left paren>  <time precision>  <right paren>  ] [ <with or without time zone>  ]
  | TIMESTAMP [ <left paren>  <timestamp precision>  <right paren>  ]
      [ <with or without time zone>  ]

<with or without time zone> ::=
    WITH TIME ZONE
  | WITHOUT TIME ZONE

<time precision> ::=
  <time fractional seconds precision> 

<timestamp precision> ::=
  <time fractional seconds precision> 

<time fractional seconds precision> ::=
  <unsigned integer> 

<interval type> ::=
  INTERVAL <interval qualifier> 

<row type> ::=
  ROW <row type body> 

<row type body> ::=
  <left paren>  <field definition>  [ { <comma>  <field definition>  }... ] <right paren> 

<reference type> ::=
  REF <left paren>  <referenced type>  <right paren>  [ <scope clause>  ]

<scope clause> ::=
  SCOPE <table name> 

<referenced type> ::=
  <path-resolved user-defined type name> 

<path-resolved user-defined type name> ::=
  <user-defined type name> 

<collection type> ::=
    <array type> 
  | <multiset type> 

<array type> ::=
  <data type>  ARRAY
      [ <left bracket or trigraph>  <maximum cardinality>  <right bracket or trigraph>  ]

<maximum cardinality> ::=
  <unsigned integer> 

<multiset type> ::=
  <data type>  MULTISET

<field definition> ::=
  <field name>  <data type> 

<value expression primary> ::=
    <parenthesized value expression> 
  | <nonparenthesized value expression primary> 

<parenthesized value expression> ::=
  <left paren>  <value expression>  <right paren> 

<nonparenthesized value expression primary> ::=
    <unsigned value specification> 
  | <column reference> 
  | <set function specification> 
  | <window function> 
  | <scalar subquery> 
  | <case expression> 
  | <cast specification> 
  | <field reference> 
  | <subtype treatment> 
  | <method invocation> 
  | <static method invocation> 
  | <new specification> 
  | <attribute or method reference> 
  | <reference resolution> 
  | <collection value constructor> 
  | <array element reference> 
  | <multiset element reference> 
  | <next value expression> 
  | <routine invocation> 

<collection value constructor> ::=
    <array value constructor> 
  | <multiset value constructor> 

<value specification> ::=
    <literal> 
  | <general value specification> 

<unsigned value specification> ::=
    <unsigned literal> 
  | <general value specification> 

<general value specification> ::=
    <host parameter specification> 
  | <SQL parameter reference> 
  | <dynamic parameter specification> 
  | <embedded variable specification> 
  | <current collation specification> 
  | CURRENT_CATALOG
  | CURRENT_DEFAULT_TRANSFORM_GROUP
  | CURRENT_PATH
  | CURRENT_ROLE
  | CURRENT_SCHEMA
  | CURRENT_TRANSFORM_GROUP_FOR_TYPE <path-resolved user-defined type name> 
  | CURRENT_USER
  | SESSION_USER
  | SYSTEM_USER
  | USER
  | VALUE

<simple value specification> ::=
    <literal> 
  | <host parameter name> 
  | <SQL parameter reference> 
  | <embedded variable name> 

<target specification> ::=
    <host parameter specification> 
  | <SQL parameter reference> 
  | <column reference> 
  | <target array element specification> 
  | <dynamic parameter specification> 
  | <embedded variable specification> 

<simple target specification> ::=
    <host parameter specification> 
  | <SQL parameter reference> 
  | <column reference> 
  | <embedded variable name> 

<host parameter specification> ::=
  <host parameter name>  [ <indicator parameter>  ]

<dynamic parameter specification> ::=
  <question mark> 

<embedded variable specification> ::=
  <embedded variable name>  [ <indicator variable>  ]

<indicator variable> ::=
  [ INDICATOR ] <embedded variable name> 

<indicator parameter> ::=
  [ INDICATOR ] <host parameter name> 

<target array element specification> ::=
  <target array reference> 
      <left bracket or trigraph>  <simple value specification>  <right bracket or trigraph> 

<target array reference> ::=
    <SQL parameter reference> 
  | <column reference> 

<current collation specification> ::=
  COLLATION FOR <left paren>  <string value expression>  <right paren> 

<contextually typed value specification> ::=
    <implicitly typed value specification> 
  | <default specification> 

<implicitly typed value specification> ::=
    <null specification> 
  | <empty specification> 

<null specification> ::=
  NULL

<empty specification> ::=
    ARRAY <left bracket or trigraph>  <right bracket or trigraph> 
  | MULTISET <left bracket or trigraph>  <right bracket or trigraph> 

<default specification> ::=
  DEFAULT

<identifier chain> ::=
  <identifier>  [ { <period>  <identifier>  }... ]

<basic identifier chain> ::=
  <identifier chain> 

<column reference> ::=
    <basic identifier chain> 
  | MODULE <period>  <qualified identifier>  <period>  <column name> 

<SQL parameter reference> ::=
  <basic identifier chain> 

<set function specification> ::=
    <aggregate function> 
  | <grouping operation> 

<grouping operation> ::=
  GROUPING <left paren>  <column reference> 
      [ { <comma>  <column reference>  }... ] <right paren> 

<window function> ::=
  <window function type>  OVER <window name or specification> 

<window function type> ::=
    <rank function type>  <left paren>  <right paren> 
  | ROW_NUMBER <left paren>  <right paren> 
  | <aggregate function> 

<rank function type> ::=
    RANK
  | DENSE_RANK
  | PERCENT_RANK
  | CUME_DIST

<window name or specification> ::=
    <window name> 
  | <in-line window specification> 

<in-line window specification> ::=
  <window specification> 

<case expression> ::=
    <case abbreviation> 
  | <case specification> 

<case abbreviation> ::=
    NULLIF <left paren>  <value expression>  <comma>  <value expression>  <right paren> 
  | COALESCE <left paren>  <value expression> 
      { <comma>  <value expression>  }... <right paren> 

<case specification> ::=
    <simple case> 
  | <searched case> 

<simple case> ::=
  CASE <case operand>  <simple when clause> ... [ <else clause>  ] END

<searched case> ::=
  CASE <searched when clause> ... [ <else clause>  ] END

<simple when clause> ::=
  WHEN <when operand list>  THEN <result> 

<searched when clause> ::=
  WHEN <search condition>  THEN <result> 

<else clause> ::=
  ELSE <result> 

<case operand> ::=
    <row value predicand> 
  | <overlaps predicate part 1> 

<when operand list> ::=
  <when operand>  [ { <comma>  <when operand>  }... ]

<when operand> ::=
    <row value predicand> 
  | <comparison predicate part 2> 
  | <between predicate part 2> 
  | <in predicate part 2> 
  | <character like predicate part 2> 
  | <octet like predicate part 2> 
  | <similar predicate part 2> 
  | <regex like predicate part 2> 
  | <null predicate part 2> 
  |   <quantified comparison predicate part 2> 
  |   <normalized predicate part 2> 
  |   <match predicate part 2> 
  |   <overlaps predicate part 2> 
  |   <distinct predicate part 2> 
  |   <member predicate part 2> 
  |   <submultiset predicate part 2> 
  |   <set predicate part 2> 
  |   <type predicate part 2> 

<result> ::=
    <result expression> 
  | NULL

<result expression> ::=
  <value expression> 

<cast specification> ::=
  CAST <left paren>  <cast operand>  AS <cast target>  <right paren> 

<cast operand> ::=
    <value expression> 
  | <implicitly typed value specification> 

<cast target> ::=
    <domain name> 
  | <data type> 

<next value expression> ::=
  NEXT VALUE FOR <sequence generator name> 

<field reference> ::=
  <value expression primary>  <period>  <field name> 

<subtype treatment> ::=
  TREAT <left paren>  <subtype operand>  AS <target subtype>  <right paren> 

<subtype operand> ::=
  <value expression> 

<target subtype> ::=
    <path-resolved user-defined type name> 
  | <reference type> 

<method invocation> ::=
    <direct invocation> 
  | <generalized invocation> 

<direct invocation> ::=
  <value expression primary>  <period>  <method name>  [ <SQL argument list>  ]

<generalized invocation> ::=
  <left paren>  <value expression primary>  AS <data type>  <right paren> 
      <period>  <method name>  [ <SQL argument list>  ]

<method selection> ::=
  <routine invocation> 

<constructor method selection> ::=
  <routine invocation> 

<static method invocation> ::=
  <path-resolved user-defined type name>  <double colon>  <method name> 
      [ <SQL argument list>  ]

<static method selection> ::=
  <routine invocation> 

<new specification> ::=
  NEW <path-resolved user-defined type name>  <SQL argument list> 

<new invocation> ::=
    <method invocation> 
  | <routine invocation> 

<attribute or method reference> ::=
  <value expression primary>  <dereference operator>  <qualified identifier> 
      [ <SQL argument list>  ]

<dereference operator> ::=
  <right arrow> 

<dereference operation> ::=
  <reference value expression>  <dereference operator>  <attribute name> 

<method reference> ::=
  <value expression primary>  <dereference operator>  <method name>  <SQL argument list> 

<reference resolution> ::=
  DEREF <left paren>  <reference value expression>  <right paren> 

<array element reference> ::=
  <array value expression> 
      <left bracket or trigraph>  <numeric value expression>  <right bracket or trigraph> 

<multiset element reference> ::=
  ELEMENT <left paren>  <multiset value expression>  <right paren> 

<value expression> ::=
    <common value expression> 
  | <boolean value expression> 
  | <row value expression> 

<common value expression> ::=
    <numeric value expression> 
  | <string value expression> 
  | <datetime value expression> 
  | <interval value expression> 
  | <user-defined type value expression> 
  | <reference value expression> 
  | <collection value expression> 

<user-defined type value expression> ::=
  <value expression primary> 

<reference value expression> ::=
  <value expression primary> 

<collection value expression> ::=
    <array value expression> 
  | <multiset value expression> 

<numeric value expression> ::=
    <term> 
  | <numeric value expression>  <plus sign>  <term> 
  | <numeric value expression>  <minus sign>  <term> 

<term> ::=
    <factor> 
  | <term>  <asterisk>  <factor> 
  | <term>  <solidus>  <factor> 

<factor> ::=
  [ <sign>  ] <numeric primary> 

<numeric primary> ::=
    <value expression primary> 
  | <numeric value function> 

<numeric value function> ::=
    <position expression> 
  | <regex occurrences function> 
  | <regex position expression> 
  | <extract expression> 
  | <length expression> 
  | <cardinality expression> 
  | <absolute value expression> 
  | <modulus expression> 
  | <natural logarithm> 
  | <exponential function> 
  | <power function> 
  | <square root> 
  | <floor function> 
  | <ceiling function> 
  | <width bucket function> 

<position expression> ::=
    <character position expression> 
  | <binary position expression> 

<regex occurrences function> ::=
  OCCURRENCES_REGEX <left paren> 
      <XQuery pattern>  [ FLAG <XQuery option flag>  ]
      IN <regex subject string> 
      [ FROM <start position>  ]
      [ USING <char length units>  ]
      <right paren> 

<XQuery pattern> ::=
  <character value expression> 

<XQuery option flag> ::=
  <character value expression> 

<regex subject string> ::=
  <character value expression> 

<regex position expression> ::=
  POSITION_REGEX <left paren> 
      [ <regex position start or after>  ]
      <XQuery pattern>  [ FLAG <XQuery option flag>  ]
      IN <regex subject string> 
      [ FROM <start position>  ]
      [ USING <char length units>  ]
      [ OCCURRENCE <regex occurrence>  ]
      [ GROUP <regex capture group>  ]
      <right paren> 

<regex position start or after> ::=
    START
  | AFTER

<regex occurrence> ::=
  <numeric value expression> 

<regex capture group> ::=
  <numeric value expression> 

<character position expression> ::=
  POSITION <left paren>  <character value expression 1>  IN <character value expression 2> 
      [ USING <char length units>  ] <right paren> 

<character value expression 1> ::=
  <character value expression> 

<character value expression 2> ::=
  <character value expression> 

<binary position expression> ::=
  POSITION <left paren>  <binary value expression>  IN <binary value expression>  <right paren> 

<length expression> ::=
    <char length expression> 
  | <octet length expression> 

<char length expression> ::=
  { CHAR_LENGTH | CHARACTER_LENGTH } <left paren>  <character value expression> 
      [ USING <char length units>  ] <right paren> 

<octet length expression> ::=
  OCTET_LENGTH <left paren>  <string value expression>  <right paren> 

<extract expression> ::=
  EXTRACT <left paren>  <extract field>  FROM <extract source>  <right paren> 

<extract field> ::=
    <primary datetime field> 
  | <time zone field> 

<time zone field> ::=
    TIMEZONE_HOUR
  | TIMEZONE_MINUTE

<extract source> ::=
    <datetime value expression> 
  | <interval value expression> 

<cardinality expression> ::=
  CARDINALITY <left paren>  <collection value expression>  <right paren> 

<absolute value expression> ::=
  ABS <left paren>  <numeric value expression>  <right paren> 

<modulus expression> ::=
  MOD <left paren>  <numeric value expression dividend>  <comma> 
      <numeric value expression divisor> <right paren> 

<numeric value expression dividend> ::=
  <numeric value expression> 

<numeric value expression divisor> ::=
  <numeric value expression> 

<natural logarithm> ::=
  LN <left paren>  <numeric value expression>  <right paren> 

<exponential function> ::=
  EXP <left paren>  <numeric value expression>  <right paren> 

<power function> ::=
  POWER <left paren>  <numeric value expression base>  <comma> 
      <numeric value expression exponent>  <right paren> 

<numeric value expression base> ::=
  <numeric value expression> 

<numeric value expression exponent> ::=
  <numeric value expression> 

<square root> ::=
  SQRT <left paren>  <numeric value expression>  <right paren> 

<floor function> ::=
  FLOOR <left paren>  <numeric value expression>  <right paren> 

<ceiling function> ::=
  { CEIL | CEILING } <left paren>  <numeric value expression>  <right paren> 

<width bucket function> ::=
  WIDTH_BUCKET <left paren>  <width bucket operand>  <comma>  <width bucket bound 1>  <comma> 
      <width bucket bound 2>  <comma>  <width bucket count>  <right paren> 

<width bucket operand> ::=
  <numeric value expression> 

<width bucket bound 1> ::=
  <numeric value expression> 

<width bucket bound 2> ::=
  <numeric value expression> 

<width bucket count> ::=
  <numeric value expression> 

<string value expression> ::=
    <character value expression> 
  | <binary value expression> 

<character value expression> ::=
    <concatenation> 
  | <character factor> 

<concatenation> ::=
  <character value expression>  <concatenation operator>  <character factor> 

<character factor> ::=
  <character primary>  [ <collate clause>  ]

<character primary> ::=
    <value expression primary> 
  | <string value function> 

<binary value expression> ::=
    <binary concatenation> 
  | <binary factor> 

<binary factor> ::=
  <binary primary> 

<binary primary> ::=
    <value expression primary> 
  | <string value function> 

<binary concatenation> ::=
  <binary value expression>  <concatenation operator>  <binary factor> 

<string value function> ::=
    <character value function> 
  | <binary value function> 

<character value function> ::=
    <character substring function> 
  | <regular expression substring function> 
  | <regex substring function> 
  | <fold> 
  | <transcoding> 
  | <character transliteration> 
  | <regex transliteration> 
  | <trim function> 
  | <character overlay function> 
  | <normalize function> 
  | <specific type method> 

<character substring function> ::=
  SUBSTRING <left paren>  <character value expression>  FROM <start position> 
      [ FOR <string length>  ] [ USING <char length units>  ] <right paren> 

<regular expression substring function> ::=
  SUBSTRING <left paren>  <character value expression>  SIMILAR <character value expression> 
      ESCAPE <escape character>  <right paren> 

<regex substring function> ::=
  SUBSTRING_REGEX <left paren> 
      <XQuery pattern>  [ FLAG <XQuery option flag>  ]
      IN <regex subject string> 
      [ FROM <start position>  ]
      [ USING <char length units>  ]
      [ OCCURRENCE <regex occurrence>  ]
      [ GROUP <regex capture group>  ]
      <left paren> 

<fold> ::=
  { UPPER | LOWER } <left paren>  <character value expression>  <right paren> 

<transcoding> ::=
  CONVERT <left paren>  <character value expression> 
      USING <transcoding name>  <right paren> 

<character transliteration> ::=
  TRANSLATE <left paren>  <character value expression> 
      USING <transliteration name>  <right paren> 

<regex transliteration> ::=
  TRANSLATE_REGEX <left paren> 
      <XQuery pattern>  [ FLAG <XQuery option flag>  ]
      IN <regex subject string> 
      [ WITH <XQuery replacement string>  ]
      [ FROM <start position>  ]
      [ USING <char length units>  ]
      [ OCCURRENCE <regex transliteration occurrence>  ]
      <left paren> 

<XQuery replacement string> ::=
  <character value expression> 

<regex transliteration occurrence> ::=
    <regex occurrence> 
  | ALL

<trim function> ::=
  TRIM <left paren>  <trim operands>  <right paren> 

<trim operands> ::=
  [ [ <trim specification>  ] [ <trim character>  ] FROM ] <trim source> 

<trim source> ::=
  <character value expression> 

<trim specification> ::=
    LEADING
  | TRAILING
  | BOTH

<trim character> ::=
  <character value expression> 

<character overlay function> ::=
  OVERLAY <left paren>  <character value expression>  PLACING <character value expression> 
      FROM <start position>  [ FOR <string length>  ]
      [ USING <char length units>  ] <right paren> 

<normalize function> ::=
  NORMALIZE <left paren>  <character value expression> 
      [ <comma>  <normal form>  [ <normalize function result length>  ] ] <right paren> 

<normal form> ::=
    NFC
  | NFD
  | NFKC
  | NFKD

<normalize function result length> ::=
    <length> 
  | <large object length> 

<specific type method> ::=
  <user-defined type value expression>  <period>  SPECIFICTYPE
      [ <left paren>  <right paren>  ]

<binary value function> ::=
    <binary substring function> 
  | <binary trim function> 
  | <binary overlay function> 

<binary substring function> ::=
  SUBSTRING <left paren>  <binary value expression>  FROM <start position> 
      [ FOR <string length>  ] <right paren> 

<binary trim function> ::=
  TRIM <left paren>  <binary trim operands>  <right paren> 

<binary trim operands> ::=
  [ [ <trim specification>  ] [ <trim octet>  ] FROM ] <binary trim source> 

<binary trim source> ::=
  <binary value expression> 

<trim octet> ::=
  <binary value expression> 

<binary overlay function> ::=
  OVERLAY <left paren>  <binary value expression>  PLACING <binary value expression> 
      FROM <start position>  [ FOR <string length>  ] <right paren> 

<start position> ::=
  <numeric value expression> 

<string length> ::=
  <numeric value expression> 

<datetime value expression> ::=
    <datetime term> 
  | <interval value expression>  <plus sign>  <datetime term> 
  | <datetime value expression>  <plus sign>  <interval term> 
  | <datetime value expression>  <minus sign>  <interval term> 

<datetime term> ::=
  <datetime factor> 

<datetime factor> ::=
  <datetime primary>  [ <time zone>  ]

<datetime primary> ::=
    <value expression primary> 
  | <datetime value function> 

<time zone> ::=
  AT <time zone specifier> 

<time zone specifier> ::=
    LOCAL
  | TIME ZONE <interval primary> 

<datetime value function> ::=
    <current date value function> 
  | <current time value function> 
  | <current timestamp value function> 
  | <current local time value function> 
  | <current local timestamp value function> 

<current date value function> ::=
  CURRENT_DATE

<current time value function> ::=
  CURRENT_TIME [ <left paren>  <time precision>  <right paren>  ]

<current local time value function> ::=
  LOCALTIME [ <left paren>  <time precision>  <right paren>  ]

<current timestamp value function> ::=
  CURRENT_TIMESTAMP [ <left paren>  <timestamp precision>  <right paren>  ]

<current local timestamp value function> ::=
  LOCALTIMESTAMP [ <left paren>  <timestamp precision>  <right paren>  ]

<interval value expression> ::=
    <interval term> 
  | <interval value expression 1>  <plus sign>  <interval term 1> 
  | <interval value expression 1>  <minus sign>  <interval term 1> 
  | <left paren>  <datetime value expression>  <minus sign>  <datetime term>  <right paren> 
      <interval qualifier> 

<interval term> ::=
    <interval factor> 
  | <interval term 2>  <asterisk>  <factor> 
  | <interval term 2>  <solidus>  <factor> 
  | <term>  <asterisk>  <interval factor> 

<interval factor> ::=
  [ <sign>  ] <interval primary> 

<interval primary> ::=
    <value expression primary>  [ <interval qualifier>  ]
  | <interval value function> 

<interval value expression 1> ::=
  <interval value expression> 

<interval term 1> ::=
  <interval term> 

<interval term 2> ::=
  <interval term> 

<interval value function> ::=
  <interval absolute value function> 

<interval absolute value function> ::=
  ABS <left paren>  <interval value expression>  <right paren> 

<boolean value expression> ::=
    <boolean term> 
  | <boolean value expression>  OR <boolean term> 

<boolean term> ::=
    <boolean factor> 
  | <boolean term>  AND <boolean factor> 

<boolean factor> ::=
  [ NOT ] <boolean test> 

<boolean test> ::=
  <boolean primary>  [ IS [ NOT ] <truth value>  ]

<truth value> ::=
    TRUE
  | FALSE
  | UNKNOWN

<boolean primary> ::=
    <predicate> 
  | <boolean predicand> 

<boolean predicand> ::=
    <parenthesized boolean value expression> 
  | <nonparenthesized value expression primary> 

<parenthesized boolean value expression> ::=
  <left paren>  <boolean value expression>  <right paren> 

<array value expression> ::=
    <array concatenation> 
  | <array primary> 

<array concatenation> ::=
  <array value expression 1>  <concatenation operator>  <array primary> 

<array value expression 1> ::=
  <array value expression> 

<array primary> ::=
  <value expression primary> 

<array value constructor> ::=
    <array value constructor by enumeration> 
  | <array value constructor by query> 

<array value constructor by enumeration> ::=
  ARRAY <left bracket or trigraph>  <array element list>  <right bracket or trigraph> 

<array element list> ::=
  <array element>  [ { <comma>  <array element>  }... ]

<array element> ::=
  <value expression> 

<array value constructor by query> ::=
  ARRAY <left paren>  <query expression>  [ <order by clause>  ] <right paren> 

<multiset value expression> ::=
    <multiset term> 
  | <multiset value expression>  MULTISET UNION [ ALL | DISTINCT ] <multiset term> 
  | <multiset value expression>  MULTISET EXCEPT [ ALL | DISTINCT ] <multiset term> 

<multiset term> ::=
    <multiset primary> 
  | <multiset term>  MULTISET INTERSECT [ ALL | DISTINCT ] <multiset primary> 

<multiset primary> ::=
    <multiset value function> 
  | <value expression primary> 

<multiset value function> ::=
  <multiset set function> 

<multiset set function> ::=
  SET <left paren>  <multiset value expression>  <right paren> 

<multiset value constructor> ::=
    <multiset value constructor by enumeration> 
  | <multiset value constructor by query> 
  | <table value constructor by query> 

<multiset value constructor by enumeration> ::=
  MULTISET <left bracket or trigraph>  <multiset element list>  <right bracket or trigraph> 

<multiset element list> ::=
  <multiset element>  [ { <comma>  <multiset element>  }... ]

<multiset element> ::=
  <value expression> 

<multiset value constructor by query> ::=
  MULTISET <left paren>  <query expression>  <right paren> 

<table value constructor by query> ::=
  TABLE <left paren>  <query expression>  <right paren> 

<row value constructor> ::=
    <common value expression> 
  | <boolean value expression> 
  | <explicit row value constructor> 

<explicit row value constructor> ::=
    <left paren>  <row value constructor element>  <comma> 
        <row value constructor element list>  <right paren> 
  | ROW <left paren>  <row value constructor element list>  <right paren> 
  | <row subquery> 

<row value constructor element list> ::=
  <row value constructor element>  [ { <comma>  <row value constructor element>  }... ]

<row value constructor element> ::=
  <value expression> 

<contextually typed row value constructor> ::=
    <common value expression> 
  | <boolean value expression> 
  | <contextually typed value specification> 
  | <left paren>  <contextually typed value specification>  <right paren> 
  | <left paren>  <contextually typed row value constructor element>  <comma> 
      <contextually typed row value constructor element list>  <right paren> 
  | ROW <left paren>  <contextually typed row value constructor element list>  <right paren> 

<contextually typed row value constructor element list> ::=
  <contextually typed row value constructor element> 
      [ { <comma>  <contextually typed row value constructor element>  }... ]

<contextually typed row value constructor element> ::=
    <value expression> 
  | <contextually typed value specification> 

<row value constructor predicand> ::=
    <common value expression> 
  | <boolean predicand> 
  | <explicit row value constructor> 

<row value expression> ::=
    <row value special case> 
  | <explicit row value constructor> 

<table row value expression> ::=
    <row value special case> 
  | <row value constructor> 

<contextually typed row value expression> ::=
    <row value special case> 
  | <contextually typed row value constructor> 

<row value predicand> ::=
    <row value special case> 
  | <row value constructor predicand> 

<row value special case> ::=
  <nonparenthesized value expression primary> 

<table value constructor> ::=
  VALUES <row value expression list> 

<row value expression list> ::=
  <table row value expression>  [ { <comma>  <table row value expression>  }... ]

<contextually typed table value constructor> ::=
  VALUES <contextually typed row value expression list> 

<contextually typed row value expression list> ::=
  <contextually typed row value expression> 
      [ { <comma>  <contextually typed row value expression>  }... ]

<table expression> ::=
  <from clause> 
      [ <where clause>  ]
      [ <group by clause>  ]
      [ <having clause>  ]
      [ <window clause>  ]

<from clause> ::=
  FROM <table reference list> 

<table reference list> ::=
  <table reference>  [ { <comma>  <table reference>  }... ]

<table reference> ::=
    <table factor> 
  | <joined table> 

<table factor> ::=
  <table primary>  [ <sample clause>  ]

<sample clause> ::=
  TABLESAMPLE <sample method>  <left paren>  <sample percentage>  <right paren> 
      [ <repeatable clause>  ]

<sample method> ::=
    BERNOULLI
  | SYSTEM

<repeatable clause> ::=
  REPEATABLE <left paren>  <repeat argument>  <right paren> 

<sample percentage> ::=
  <numeric value expression> 

<repeat argument> ::=
  <numeric value expression> 

<table primary> ::=
    <table or query name>  [ [ AS ] <correlation name> 
        [ <left paren>  <derived column list>  <right paren>  ] ]
  | <derived table>  [ AS ] <correlation name> 
      [ <left paren>  <derived column list>  <right paren>  ]
  | <lateral derived table>  [ AS ] <correlation name> 
      [ <left paren>  <derived column list>  <right paren>  ]
  | <collection derived table>  [ AS ] <correlation name> 
      [ <left paren>  <derived column list>  <right paren>  ]
  | <table function derived table>  [ AS ] <correlation name> 
      [ <left paren>  <derived column list>  <right paren>  ]
  | <only spec>  [ [ AS ] <correlation name> 
      [ <left paren>  <derived column list>  <right paren>  ] ]
  | <parenthesized joined table> 

<only spec> ::=
  ONLY <left paren>  <table or query name>  <right paren> 

<lateral derived table> ::=
  LATERAL <table subquery> 

<collection derived table> ::=
  UNNEST <left paren>  <collection value expression>  <right paren> 
      [ WITH ORDINALITY ]

<table function derived table> ::=
  TABLE <left paren>  <collection value expression>  <right paren> 

<derived table> ::=
  <table subquery> 

<table or query name> ::=
    <table name> 
  | <transition table name> 
  | <query name> 

<derived column list> ::=
  <column name list> 

<column name list> ::=
  <column name>  [ { <comma>  <column name>  }... ]

<parenthesized joined table> ::=
    <left paren>  <parenthesized joined table>  <right paren> 
  | <left paren>  <joined table>  <right paren> 

<joined table> ::=
    <cross join> 
  | <qualified join> 
  | <natural join> 

<cross join> ::=
  <table reference>  CROSS JOIN <table factor> 

<qualified join> ::=
  { <table reference>  | <partitioned join table>  }
      [ <join type>  ] JOIN
      { <table reference>  | <partitioned join table>  }
      <join specification> 

<partitioned join table> ::=
  <table factor>  PARTITION BY
      <partitioned join column reference list> 

<partitioned join column reference list> ::=
  <left paren>  <partitioned join column reference> 
      [ { <comma>  <partitioned join column reference>  }... ]
      <right paren> 

<partitioned join column reference> ::=
  <column reference> 

<natural join> ::=
  { <table reference>  | <partitioned join table>  }
      NATURAL [ <join type>  ] JOIN
      { <table factor>  | <partitioned join table>  }

<join specification> ::=
    <join condition> 
  | <named columns join> 

<join condition> ::=
  ON <search condition> 

<named columns join> ::=
  USING <left paren>  <join column list>  <right paren> 

<join type> ::=
    INNER
  | <outer join type>  [ OUTER ]

<outer join type> ::=
    LEFT
  | RIGHT
  | FULL

<join column list> ::=
  <column name list> 

<where clause> ::=
  WHERE <search condition> 

<group by clause> ::=
  GROUP BY [ <set quantifier>  ] <grouping element list> 

<grouping element list> ::=
  <grouping element>  [ { <comma>  <grouping element>  }... ]

<grouping element> ::=
    <ordinary grouping set> 
  | <rollup list> 
  | <cube list> 
  | <grouping sets specification> 
  | <empty grouping set> 

<ordinary grouping set> ::=
    <grouping column reference> 
  | <left paren>  <grouping column reference list>  <right paren> 

<grouping column reference> ::=
  <column reference>  [ <collate clause>  ]

<grouping column reference list> ::=
  <grouping column reference>  [ { <comma>  <grouping column reference>  }... ]

<rollup list> ::=
  ROLLUP <left paren>  <ordinary grouping set list>  <right paren> 

<ordinary grouping set list> ::=
  <ordinary grouping set>  [ { <comma>  <ordinary grouping set>  }... ]

<cube list> ::=
  CUBE <left paren>  <ordinary grouping set list>  <right paren> 

<grouping sets specification> ::=
  GROUPING SETS <left paren>  <grouping set list>  <right paren> 

<grouping set list> ::=
  <grouping set>  [ { <comma>  <grouping set>  }... ]

<grouping set> ::=
    <ordinary grouping set> 
  | <rollup list> 
  | <cube list> 
  | <grouping sets specification> 
  | <empty grouping set> 

<empty grouping set> ::=
  <left paren>  <right paren> 

<having clause> ::=
  HAVING <search condition> 

<window clause> ::=
  WINDOW <window definition list> 

<window definition list> ::=
  <window definition>  [ { <comma>  <window definition>  }... ]

<window definition> ::=
  <new window name>  AS <window specification> 

<new window name> ::=
  <window name> 

<window specification> ::=
  <left paren>  <window specification details>  <right paren> 

<window specification details> ::=
  [ <existing window name>  ]
      [ <window partition clause>  ]
      [ <window order clause>  ]
      [ <window frame clause>  ]

<existing window name> ::=
  <window name> 

<window partition clause> ::=
  PARTITION BY <window partition column reference list> 

<window partition column reference list> ::=
  <window partition column reference> 
      [ { <comma>  <window partition column reference>  }... ]

<window partition column reference> ::=
  <column reference>  [ <collate clause>  ]

<window order clause> ::=
  ORDER BY <sort specification list> 

<window frame clause> ::=
  <window frame units>  <window frame extent> 
      [ <window frame exclusion>  ]

<window frame units> ::=
    ROWS
  | RANGE

<window frame extent> ::=
    <window frame start> 
  | <window frame between> 

<window frame start> ::=
    UNBOUNDED PRECEDING
  | <window frame preceding> 
  | CURRENT ROW

<window frame preceding> ::=
  <unsigned value specification>  PRECEDING

<window frame between> ::=
  BETWEEN <window frame bound 1>  AND <window frame bound 2> 

<window frame bound 1> ::=
  <window frame bound> 

<window frame bound 2> ::=
  <window frame bound> 

<window frame bound> ::=
    <window frame start> 
  | UNBOUNDED FOLLOWING
  | <window frame following> 

<window frame following> ::=
  <unsigned value specification>  FOLLOWING

<window frame exclusion> ::=
    EXCLUDE CURRENT ROW
  | EXCLUDE GROUP
  | EXCLUDE TIES
  | EXCLUDE NO OTHERS

<query specification> ::=
  SELECT [ <set quantifier>  ] <select list>  <table expression> 

<select list> ::=
    <asterisk> 
  | <select sublist>  [ { <comma>  <select sublist>  }... ]

<select sublist> ::=
    <derived column> 
  | <qualified asterisk> 

<qualified asterisk> ::=
    <asterisked identifier chain>  <period>  <asterisk> 
  | <all fields reference> 

<asterisked identifier chain> ::=
  <asterisked identifier>  [ { <period>  <asterisked identifier>  }... ]

<asterisked identifier> ::=
  <identifier> 

<derived column> ::=
  <value expression>  [ <as clause>  ]

<as clause> ::=
  [ AS ] <column name> 

<all fields reference> ::=
  <value expression primary>  <period>  <asterisk> 
      [ AS <left paren>  <all fields column name list>  <right paren>  ]

<all fields column name list> ::=
  <column name list> 

<query expression> ::=
  [ <with clause>  ] <query expression body> 

<with clause> ::=
  WITH [ RECURSIVE ] <with list> 

<with list> ::=
  <with list element>  [ { <comma>  <with list element>  }... ]

<with list element> ::=
  <query name>  [ <left paren>  <with column list>  <right paren>  ]
      AS <left paren>  <query expression>  <right paren>  [ <search or cycle clause>  ]

<with column list> ::=
  <column name list> 

<query expression body> ::=
    <query term> 
  | <query expression body>  UNION [ ALL | DISTINCT ]
      [ <corresponding spec>  ] <query term> 
  | <query expression body>  EXCEPT [ ALL | DISTINCT ]
      [ <corresponding spec>  ] <query term> 

<query term> ::=
    <query primary> 
  | <query term>  INTERSECT [ ALL | DISTINCT ]
      [ <corresponding spec>  ] <query primary> 

<query primary> ::=
    <simple table> 
  | <left paren>  <query expression body>  <right paren> 

<simple table> ::=
    <query specification> 
  | <table value constructor> 
  | <explicit table> 

<explicit table> ::=
  TABLE <table or query name> 

<corresponding spec> ::=
  CORRESPONDING [ BY <left paren>  <corresponding column list>  <right paren>  ]

<corresponding column list> ::=
  <column name list> 

<search or cycle clause> ::=
    <search clause> 
  | <cycle clause> 
  | <search clause>  <cycle clause> 

<search clause> ::=
  SEARCH <recursive search order>  SET <sequence column> 

<recursive search order> ::=
    DEPTH FIRST BY <column name list> 
  | BREADTH FIRST BY <column name list> 

<sequence column> ::=
  <column name> 

<cycle clause> ::=
  CYCLE <cycle column list>  SET <cycle mark column>  TO <cycle mark value> 
      DEFAULT <non-cycle mark value>  USING <path column> 

<cycle column list> ::=
  <cycle column>  [ { <comma>  <cycle column>  }... ]

<cycle column> ::=
  <column name> 

<cycle mark column> ::=
  <column name> 

<path column> ::=
  <column name> 

<cycle mark value> ::=
  <value expression> 

<non-cycle mark value> ::=
  <value expression> 

<scalar subquery> ::=
  <subquery> 

<row subquery> ::=
  <subquery> 

<table subquery> ::=
  <subquery> 

<subquery> ::=
  <left paren>  <query expression>  <right paren> 

<predicate> ::=
    <comparison predicate> 
  | <between predicate> 
  | <in predicate> 
  | <like predicate> 
  | <similar predicate> 
  | <regex like predicate> 
  | <null predicate> 
  | <quantified comparison predicate> 
  | <exists predicate> 
  | <unique predicate> 
  | <normalized predicate> 
  | <match predicate> 
  | <overlaps predicate> 
  | <distinct predicate> 
  | <member predicate> 
  | <submultiset predicate> 
  | <set predicate> 
  | <type predicate> 

<comparison predicate> ::=
  <row value predicand>  <comparison predicate part 2> 

<comparison predicate part 2> ::=
  <comp op>  <row value predicand> 

<comp op> ::=
    <equals operator> 
  | <not equals operator> 
  | <less than operator> 
  | <greater than operator> 
  | <less than or equals operator> 
  | <greater than or equals operator> 

<between predicate> ::=
  <row value predicand>  <between predicate part 2> 

<between predicate part 2> ::=
  [ NOT ] BETWEEN [ ASYMMETRIC | SYMMETRIC ]
      <row value predicand>  AND <row value predicand> 

<in predicate> ::=
  <row value predicand>  <in predicate part 2> 

<in predicate part 2> ::=
  [ NOT ] IN <in predicate value> 

<in predicate value> ::=
    <table subquery> 
  | <left paren>  <in value list>  <right paren> 

<in value list> ::=
  <row value expression>  [ { <comma>  <row value expression>  }... ]

<like predicate> ::=
    <character like predicate> 
  | <octet like predicate> 

<character like predicate> ::=
  <row value predicand>  <character like predicate part 2> 

<character like predicate part 2> ::=
  [ NOT ] LIKE <character pattern>  [ ESCAPE <escape character>  ]

<character pattern> ::=
  <character value expression> 

<escape character> ::=
  <character value expression> 

<octet like predicate> ::=
  <row value predicand>  <octet like predicate part 2> 

<octet like predicate part 2> ::=
  [ NOT ] LIKE <octet pattern>  [ ESCAPE <escape octet>  ]

<octet pattern> ::=
  <binary value expression> 

<escape octet> ::=
  <binary value expression> 

<similar predicate> ::=
  <row value predicand>  <similar predicate part 2> 

<similar predicate part 2> ::=
  [ NOT ] SIMILAR TO <similar pattern>  [ ESCAPE <escape character>  ]

<similar pattern> ::=
  <character value expression> 

<regular expression> ::=
    <regular term> 
  | <regular expression>  <vertical bar>  <regular term> 

<regular term> ::=
    <regular factor> 
  | <regular term>  <regular factor> 

<regular factor> ::=
    <regular primary> 
  | <regular primary>       <asterisk> 
  | <regular primary>       <plus sign> 
  | <regular primary>       <question mark> 
  | <regular primary>       <repeat factor> 

<repeat factor> ::=
  <left brace>  <low value>  [ <upper limit>  ] <right brace> 

<upper limit> ::=
  <comma>  [ <high value>  ]

<low value> ::=
  <unsigned integer> 

<high value> ::=
  <unsigned integer> 

<regular primary> ::=
    <character specifier> 
  | <percent> 
  | <regular character set> 
  | <left paren>  <regular expression>  <right paren> 

<character specifier> ::=
    <non-escaped character> 
  | <escaped character> 

<non-escaped character> ::=
  !! See the Syntax Rules

<escaped character> ::=
  !! See the Syntax Rules

<regular character     set> ::=
    <underscore> 
  | <left bracket>      <character enumeration> ... <right bracket> 
  | <left bracket>      <circumflex>  <character enumeration> ... <right bracket> 
  | <left bracket>      <character enumeration include> ...
      <circumflex>      <character enumeration exclude> ... <right bracket> 

<character enumeration include> ::=
  <character enumeration> 

<character enumeration exclude> ::=
  <character enumeration> 

<character enumeration> ::=
    <character specifier> 
  | <character specifier>  <minus sign>  <character specifier> 
  | <left bracket>  <colon>  <regular character set identifier>  <colon>  <right bracket> 

<regular character set identifier> ::=
  <identifier> 

<regex like predicate> ::=
  <row value predicand>  <regex like predicate part 2> 

<regex like predicate part 2> ::=
  [ NOT ] LIKE_REGEX <XQuery pattern>  [ FLAG <XQuery option flag>  ]

<null predicate> ::=
  <row value predicand>  <null predicate part 2> 

<null predicate part 2> ::=
  IS [ NOT ] NULL

<quantified comparison predicate> ::=
  <row value predicand>  <quantified comparison predicate part 2> 

<quantified comparison predicate part 2> ::=
  <comp op>  <quantifier>  <table subquery> 

<quantifier> ::=
    <all> 
  | <some> 

<all> ::=
  ALL

<some> ::=
    SOME
  | ANY

<exists predicate> ::=
  EXISTS <table subquery> 

<unique predicate> ::=
  UNIQUE <table subquery> 

<normalized predicate> ::=
  <row value predicand>  <normalized predicate part 2> 

<normalized predicate part 2> ::=
  IS [ NOT ] [ <normal form>  ] NORMALIZED

<match predicate> ::=
  <row value predicand>  <match predicate part 2> 

<match predicate part 2> ::=
  MATCH [ UNIQUE ] [ SIMPLE | PARTIAL | FULL ] <table subquery> 

<overlaps predicate> ::=
  <overlaps predicate part 1>  <overlaps predicate part 2> 

<overlaps predicate part 1> ::=
  <row value predicand 1> 

<overlaps predicate part 2> ::=
  OVERLAPS <row value predicand 2> 

<row value predicand 1> ::=
  <row value predicand> 

<row value predicand 2> ::=
  <row value predicand> 

<distinct predicate> ::=
  <row value predicand 3>  <distinct predicate part 2> 

<distinct predicate part 2> ::=
  IS [ NOT ] DISTINCT FROM <row value predicand 4> 

<row value predicand 3> ::=
  <row value predicand> 

<row value predicand 4> ::=
  <row value predicand> 

<member predicate> ::=
  <row value predicand>  <member predicate part 2> 

<member predicate part 2> ::=
  [ NOT ] MEMBER [ OF ] <multiset value expression> 

<submultiset predicate> ::=
  <row value predicand>  <submultiset predicate part 2> 

<submultiset predicate part 2> ::=
  [ NOT ] SUBMULTISET [ OF ] <multiset value expression> 

<set predicate> ::=
  <row value predicand>  <set predicate part 2> 

<set predicate part 2> ::=
  IS [ NOT ] A SET

<type predicate> ::=
  <row value predicand>  <type predicate part 2> 

<type predicate part 2> ::=
  IS [ NOT ] OF <left paren>  <type list>  <right paren> 

<type list> ::=
  <user-defined type specification> 
      [ { <comma>  <user-defined type specification>  }... ]

<user-defined type specification> ::=
    <inclusive user-defined type specification> 
  | <exclusive user-defined type specification> 

<inclusive user-defined type specification> ::=
  <path-resolved user-defined type name> 

<exclusive user-defined type specification> ::=
  ONLY <path-resolved user-defined type name> 

<search condition> ::=
  <boolean value expression> 

<interval qualifier> ::=
    <start field>  TO <end field> 
  | <single datetime field> 

<start field> ::=
  <non-second primary datetime field> 
      [ <left paren>  <interval leading field precision>  <right paren>  ]

<end field> ::=
    <non-second primary datetime field> 
  | SECOND [ <left paren>  <interval fractional seconds precision>  <right paren>  ]

<single datetime field> ::=
    <non-second primary datetime field> 
        [ <left paren>  <interval leading field precision>  <right paren>  ]
  | SECOND [ <left paren>  <interval leading field precision> 
      [ <comma>  <interval fractional seconds precision>  ] <right paren>  ]

<primary datetime field> ::=
    <non-second primary datetime field> 
  | SECOND

<non-second primary datetime field> ::=
    YEAR
  | MONTH
  | DAY
  | HOUR
  | MINUTE

<interval fractional seconds precision> ::=
  <unsigned integer> 

<interval leading field precision> ::=
  <unsigned integer> 

<language clause> ::=
  LANGUAGE <language name> 

<language name> ::=
    ADA
  | C
  | COBOL
  | FORTRAN
  | M | MUMPS
  | PASCAL
  | PLI
  | SQL

<path specification> ::=
  PATH <schema name list> 

<schema name list> ::=
  <schema name>  [ { <comma>  <schema name>  }... ]

<routine invocation> ::=
  <routine name>  <SQL argument list> 

<routine name> ::=
  [ <schema name>  <period>  ] <qualified identifier> 

<SQL argument list> ::=
  <left paren>  [ <SQL argument>  [ { <comma>  <SQL argument>  }... ] ] <right paren> 

<SQL argument> ::=
    <value expression> 
  | <generalized expression> 
  | <target specification> 

<generalized expression> ::=
  <value expression>  AS <path-resolved user-defined type name> 

<character set specification> ::=
    <standard character set name> 
  | <implementation-defined character set name> 
  | <user-defined character set name> 

<standard character set name> ::=
  <character set name> 

<implementation-defined character set name> ::=
  <character set name> 

<user-defined character set name> ::=
  <character set name> 

<specific routine designator> ::=
    SPECIFIC <routine type>  <specific name> 
  | <routine type>  <member name>  [ FOR <schema-resolved user-defined type name>  ]

<routine type> ::=
    ROUTINE
  | FUNCTION
  | PROCEDURE
  | [ INSTANCE | STATIC | CONSTRUCTOR ] METHOD

<member name> ::=
  <member name alternatives>  [ <data type list>  ]

<member name alternatives> ::=
    <schema qualified routine name> 
  | <method name> 

<data type list> ::=
  <left paren>  [ <data type>  [ { <comma>  <data type>  }... ] ] <right paren> 

<collate clause> ::=
  COLLATE <collation name> 

<constraint name definition> ::=
  CONSTRAINT <constraint name> 

<constraint characteristics> ::=
    <constraint check time>  [ [ NOT ] DEFERRABLE ]
  | [ NOT ] DEFERRABLE [ <constraint check time>  ]

<constraint check time> ::=
    INITIALLY DEFERRED
  | INITIALLY IMMEDIATE

<aggregate function> ::=
    COUNT <left paren>  <asterisk>  <right paren>  [ <filter clause>  ]
  | <general set function>  [ <filter clause>  ]
  | <binary set function>  [ <filter clause>  ]
  | <ordered set function>  [ <filter clause>  ]

<general set function> ::=
  <set function type>  <left paren>  [ <set quantifier>  ]
      <value expression>  <right paren> 

<set function type> ::=
  <computational operation> 

<computational operation> ::=
    AVG
  | MAX
  | MIN
  | SUM
  | EVERY
  | ANY
  | SOME
  | COUNT
  | STDDEV_POP
  | STDDEV_SAMP
  | VAR_SAMP
  | VAR_POP
  | COLLECT
  | FUSION
  | INTERSECTION

<set quantifier> ::=
    DISTINCT
  | ALL

<filter clause> ::=
  FILTER <left paren>  WHERE <search condition>  <right paren> 

<binary set function> ::=
  <binary set function type>  <left paren>  <dependent variable expression>  <comma> 
      <independent variable expression>  <right paren> 

<binary set function type> ::=
    COVAR_POP
  | COVAR_SAMP
  | CORR
  |   REGR_SLOPE
  |   REGR_INTERCEPT
  |   REGR_COUNT
  |   REGR_R2
  |   REGR_AVGX
  |   REGR_AVGY
  |   REGR_SXX
  |   REGR_SYY
  |   REGR_SXY

<dependent variable expression> ::=
  <numeric value expression> 

<independent variable expression> ::=
  <numeric value expression> 

<ordered set function> ::=
    <hypothetical set function> 
  | <inverse distribution function> 

<hypothetical set function> ::=
  <rank function type>  <left paren> 
      <hypothetical set function value expression list>  <right paren> 
      <within group specification> 

<within group specification> ::=
  WITHIN GROUP <left paren>  ORDER BY <sort specification list>  <right paren> 

<hypothetical set function value expression list> ::=
  <value expression>  [ { <comma>  <value expression>  }... ]

<inverse distribution function> ::=
  <inverse distribution function type>  <left paren> 
      <inverse distribution function argument>  <right paren> 
      <within group specification> 

<inverse distribution function argument> ::=
  <numeric value expression> 

<inverse distribution function type> ::=
    PERCENTILE_CONT
  | PERCENTILE_DISC

<sort specification list> ::=
  <sort specification>  [ { <comma>  <sort specification>  }... ]

<sort specification> ::=
  <sort key>  [ <ordering specification>  ] [ <null ordering>  ]

<sort key> ::=
  <value expression> 

<ordering specification> ::=
    ASC
  | DESC

<null ordering> ::=
    NULLS FIRST
  | NULLS LAST

<schema definition> ::=
  CREATE SCHEMA <schema name clause> 
      [ <schema character set or path>  ]
      [ <schema element> ... ]

<schema character set or path> ::=
    <schema character set specification> 
  | <schema path specification> 
  | <schema character set specification>  <schema path specification> 
  | <schema path specification>  <schema character set specification> 

<schema name clause> ::=
    <schema name> 
  | AUTHORIZATION <schema authorization identifier> 
  | <schema name>  AUTHORIZATION <schema authorization identifier> 

<schema authorization identifier> ::=
  <authorization identifier> 

<schema character set specification> ::=
  DEFAULT CHARACTER SET <character set specification> 

<schema path specification> ::=
  <path specification> 

<schema element> ::=
    <table definition> 
  | <view definition> 
  | <domain definition> 
  |   <character set definition> 
  |   <collation definition> 
  |   <transliteration definition> 
  |   <assertion definition> 
  |   <trigger definition> 
  |   <user-defined type definition> 
  |   <user-defined cast definition> 
  |   <user-defined ordering definition> 
  |   <transform definition> 
  |   <schema routine> 
  |   <sequence generator definition> 
  |   <grant statement> 
  |   <role definition> 

<drop schema statement> ::=
  DROP SCHEMA <schema name>  <drop behavior> 

<drop behavior> ::=
    CASCADE
  | RESTRICT

<table definition> ::=
  CREATE [ <table scope>  ] TABLE <table name>  <table contents source> 
      [ ON COMMIT <table commit action>  ROWS ]

<table contents source> ::=
    <table element list> 
  | <typed table clause> 
  | <as subquery clause> 

<table scope> ::=
  <global or local>  TEMPORARY

<global or local> ::=
    GLOBAL
  | LOCAL

<table commit action> ::=
    PRESERVE
  | DELETE

<table element list> ::=
  <left paren>  <table element>  [ { <comma>  <table element>  }... ] <right paren> 

<table element> ::=
    <column definition> 
  | <table constraint definition> 
  | <like clause> 

<typed table clause> ::=
  OF <path-resolved user-defined type name>  [ <subtable clause>  ]
      [ <typed table element list>  ]

<typed table element list> ::=
  <left paren>  <typed table element> 
      [ { <comma>  <typed table element>  }... ] <right paren> 

<typed table element> ::=
    <column options> 
  | <table constraint definition> 
  | <self-referencing column specification> 

<self-referencing column specification> ::=
  REF IS <self-referencing column name>  [ <reference generation>  ]

<reference generation> ::=
    SYSTEM GENERATED
  | USER GENERATED
  | DERIVED

<self-referencing column name> ::=
  <column name> 

<column options> ::=
  <column name>  WITH OPTIONS <column option list> 

<column option list> ::=
  [ <scope clause>  ] [ <default clause>  ] [ <column constraint definition> ... ]

<subtable clause> ::=
  UNDER <supertable clause> 

<supertable clause> ::=
  <supertable name> 

<supertable name> ::=
  <table name> 

<like clause> ::=
  LIKE <table name>  [ <like options>  ]

<like options> ::=
  <like option> ...

<like option> ::=
    <identity option> 
  | <column default option> 
  | <generation option> 

<identity option> ::=
    INCLUDING IDENTITY
  | EXCLUDING IDENTITY

<column default option> ::=
    INCLUDING DEFAULTS
  | EXCLUDING DEFAULTS

<generation option> ::=
    INCLUDING GENERATED
  | EXCLUDING GENERATED

<as subquery clause> ::=
  [ <left paren>  <column name list>  <right paren>  ] AS <subquery> 
      <with or without data> 

<with or without data> ::=
    WITH NO DATA
  | WITH DATA

<column definition> ::=
  <column name>  [ <data type or domain name>  ]
      [ <default clause>  | <identity column specification>  | <generation clause>  ]
      [ <column constraint definition> ... ]
      [ <collate clause>  ]

<data type or domain name> ::=
    <data type> 
  | <domain name> 

<column constraint definition> ::=
  [ <constraint name definition>  ] <column constraint>  [ <constraint characteristics>  ]

<column constraint> ::=
    NOT NULL
  | <unique specification> 
  | <references specification> 
  | <check constraint definition> 

<identity column specification> ::=
  GENERATED { ALWAYS | BY DEFAULT } AS IDENTITY
      [ <left paren>  <common sequence generator options>  <right paren>  ]

<generation clause> ::=
  <generation rule>  AS <generation expression> 

<generation rule> ::=
  GENERATED ALWAYS

<generation expression> ::=
  <left paren>  <value expression>  <right paren> 

<default clause> ::=
  DEFAULT <default option> 

<default option> ::=
    <literal> 
  | <datetime value function> 
  | USER
  | CURRENT_USER
  | CURRENT_ROLE
  | SESSION_USER
  | SYSTEM_USER
  | CURRENT_CATALOG
  | CURRENT_SCHEMA
  | CURRENT_PATH
  | <implicitly typed value specification> 

<table constraint definition> ::=
  [ <constraint name definition>  ] <table constraint> 
      [ <constraint characteristics>  ]

<table constraint> ::=
    <unique constraint definition> 
  | <referential constraint definition> 
  | <check constraint definition> 

<unique constraint definition> ::=
    <unique specification>  <left paren>  <unique column list>  <right paren> 
  | UNIQUE ( VALUE )

<unique specification> ::=
    UNIQUE
  | PRIMARY KEY

<unique column list> ::=
  <column name list> 

<referential constraint definition> ::=
  FOREIGN KEY <left paren>  <referencing columns>  <right paren> 
      <references specification> 

<references specification> ::=
  REFERENCES <referenced table and columns> 
      [ MATCH <match type>  ] [ <referential triggered action>  ]

<match type> ::=
    FULL
  | PARTIAL
  | SIMPLE

<referencing columns> ::=
  <reference column list> 

<referenced table and columns> ::=
  <table name>  [ <left paren>  <reference column list>  <right paren>  ]

<reference column list> ::=
  <column name list> 

<referential triggered action> ::=
    <update rule>  [ <delete rule>  ]
  | <delete rule>  [ <update rule>  ]

<update rule> ::=
  ON UPDATE <referential action> 

<delete rule> ::=
  ON DELETE <referential action> 

<referential action> ::=
    CASCADE
  | SET NULL
  | SET DEFAULT
  | RESTRICT
  | NO ACTION

<check constraint definition> ::=
  CHECK <left paren>  <search condition>  <right paren> 

<alter table statement> ::=
  ALTER TABLE <table name>  <alter table action> 

<alter table action> ::=
    <add column definition> 
  | <alter column definition> 
  | <drop column definition> 
  | <add table constraint definition> 
  | <drop table constraint definition> 

<add column definition> ::=
  ADD [ COLUMN ] <column definition> 

<alter column definition> ::=

<alter column action> ::=
    <set column default clause> 
  | <drop column default clause> 
  | <add column scope clause> 
  | <drop column scope clause> 
  | <alter identity column specification> 

<set column default clause> ::=
  SET <default clause> 

<drop column default clause> ::=
  DROP DEFAULT

<add column scope clause> ::=
  ADD <scope clause> 

<drop column scope clause> ::=
  DROP SCOPE <drop behavior> 

<alter identity column specification> ::=
  <alter identity column option> ...

<alter identity column option> ::=
    <alter sequence generator restart option> 
  | SET <basic sequence generator option> 

<drop column definition> ::=
  DROP [ COLUMN ] <column name>  <drop behavior> 

<add table constraint definition> ::=
  ADD <table constraint definition> 

<drop table constraint definition> ::=
  DROP CONSTRAINT <constraint name>  <drop behavior> 

<drop table statement> ::=
  DROP TABLE <table name>  <drop behavior> 

<view definition> ::=
  CREATE [ RECURSIVE ] VIEW <table name>  <view specification> 
      AS <query expression>  [ WITH [ <levels clause>  ] CHECK OPTION ]

<view specification> ::=
    <regular view specification> 
  | <referenceable view specification> 

<regular view specification> ::=
  [ <left paren>  <view column list>  <right paren>  ]

<referenceable view specification> ::=
  OF <path-resolved user-defined type name>  [ <subview clause>  ]
      [ <view element list>  ]

<subview clause> ::=
  UNDER <table name> 

<view element list> ::=
  <left paren>  <view element>  [ { <comma>  <view element>  }... ] <right paren> 

<view element> ::=
    <self-referencing column specification> 
  | <view column option> 

<view column option> ::=
  <column name>  WITH OPTIONS <scope clause> 

<levels clause> ::=
    CASCADED
  | LOCAL

<view column list> ::=
  <column name list> 

<drop view statement> ::=
  DROP VIEW <table name>  <drop behavior> 

<domain definition> ::=
  CREATE DOMAIN <domain name>  [ AS ] <predefined type> 
      [ <default clause>  ]
      [ <domain constraint> ... ]
      [ <collate clause>  ]

<domain constraint> ::=
  [ <constraint name definition>  ] <check constraint definition>  [
      <constraint characteristics>  ]

<alter domain statement> ::=
  ALTER DOMAIN <domain name>  <alter domain action> 

<alter domain action> ::=
    <set domain default clause> 
  | <drop domain default clause> 
  | <add domain constraint definition> 
  | <drop domain constraint definition> 

<set domain default clause> ::=
  SET <default clause> 

<drop domain default clause> ::=
  DROP DEFAULT

<add domain constraint definition> ::=
  ADD <domain constraint> 

<drop domain constraint definition> ::=
  DROP CONSTRAINT <constraint name> 

<drop domain statement> ::=
  DROP DOMAIN <domain name>  <drop behavior> 

<character set definition> ::=
  CREATE CHARACTER SET <character set name>  [ AS ]
      <character set source>  [ <collate clause>  ]

<character set source> ::=
  GET <character set specification> 

<drop character set statement> ::=
  DROP CHARACTER SET <character set name> 

<collation definition> ::=
  CREATE COLLATION <collation name>  FOR <character set specification> 
      FROM <existing collation name>  [ <pad characteristic>  ]

<existing collation name> ::=
  <collation name> 

<pad characteristic> ::=
    NO PAD
  | PAD SPACE

<drop collation statement> ::=
  DROP COLLATION <collation name>  <drop behavior> 

<transliteration definition> ::=
  CREATE TRANSLATION <transliteration name>  FOR <source character set specification> 
      TO <target character set specification>  FROM <transliteration source> 

<source character set specification> ::=
  <character set specification> 

<target character set specification> ::=
  <character set specification> 

<transliteration source> ::=
    <existing transliteration name> 
  | <transliteration routine> 

<existing transliteration name> ::=
  <transliteration name> 

<transliteration routine> ::=
  <specific routine designator> 

<drop transliteration statement> ::=
  DROP TRANSLATION <transliteration name> 

<assertion definition> ::=
  CREATE ASSERTION <constraint name> 
      CHECK <left paren>  <search condition>  <right paren> 
      [ <constraint characteristics>  ]

<drop assertion statement> ::=
  DROP ASSERTION <constraint name>  [ <drop behavior>  ]

<trigger definition> ::=
  CREATE TRIGGER <trigger name>  <trigger action time>  <trigger event> 
      ON <table name>  [ REFERENCING <transition table or variable list>  ]
      <triggered action> 

<trigger action time> ::=
    BEFORE
  | AFTER

<trigger event> ::=
    INSERT
  | DELETE
  | UPDATE [ OF <trigger column list>  ]

<trigger column list> ::=
  <column name list> 

<triggered action> ::=
  [ FOR EACH { ROW | STATEMENT } ]
      [ WHEN <left paren>  <search condition>  <right paren>  ]
      <triggered SQL statement> 

<triggered SQL statement> ::=
    <SQL procedure statement> 
  | BEGIN ATOMIC { <SQL procedure statement>  <semicolon>  }... END

<transition table or variable list> ::=
  <transition table or variable> ...

<transition table or     variable> ::=
    OLD [ ROW ] [ AS     ] <old transition variable name> 
  | NEW [ ROW ] [ AS     ] <new transition variable name> 
  | OLD TABLE [ AS ]     <old transition table name> 
  | NEW TABLE [ AS ]     <new transition table name> 

<old transition table name> ::=
  <transition table name> 

<new transition table name> ::=
  <transition table name> 

<transition table name> ::=
  <identifier> 

<old transition variable name> ::=
  <correlation name> 

<new transition variable name> ::=
  <correlation name> 

<drop trigger statement> ::=
  DROP TRIGGER <trigger name> 

<user-defined type definition> ::=
  CREATE TYPE <user-defined type body> 

<user-defined type body> ::=
  <schema-resolved user-defined type name> 
      [ <subtype clause>  ]
      [ AS <representation>  ]
      [ <user-defined type option list>  ]
      [ <method specification list>  ]

<user-defined type option list> ::=
  <user-defined type option>  [ <user-defined type option> ... ]

<user-defined type option> ::=
    <instantiable clause> 
  | <finality> 
  | <reference type specification> 
  | <cast to ref> 
  | <cast to type> 
  | <cast to distinct> 
  | <cast to source> 

<subtype clause> ::=
  UNDER <supertype name> 

<supertype name> ::=
  <path-resolved user-defined type name> 

<representation> ::=
    <predefined type> 
  |<member list> 

<member list> ::=
  <left paren>  <member>  [ { <comma>  <member>  }... ] <right paren> 

<member> ::=
  <attribute definition> 

<instantiable clause> ::=
    INSTANTIABLE
  | NOT INSTANTIABLE

<finality> ::=
    FINAL
  | NOT FINAL

<reference type specification> ::=
    <user-defined representation> 
  | <derived representation> 
  | <system-generated representation> 

<user-defined representation> ::=
  REF USING <predefined type> 

<derived representation> ::=
  REF FROM <list of attributes> 

<system-generated representation> ::=
  REF IS SYSTEM GENERATED

<cast to ref> ::=
  CAST <left paren>  SOURCE AS REF <right paren>  WITH <cast to ref identifier> 

<cast to ref identifier> ::=
  <identifier> 

<cast to type> ::=
  CAST <left paren>  REF AS SOURCE <right paren>  WITH <cast to type identifier> 

<cast to type identifier> ::=
  <identifier> 

<list of attributes> ::=
  <left paren>  <attribute name>  [ { <comma>  <attribute name>  }... ] <right paren> 

<cast to distinct> ::=
  CAST <left paren>  SOURCE AS DISTINCT <right paren> 
      WITH <cast to distinct identifier> 

<cast to distinct identifier> ::=
  <identifier> 

<cast to source> ::=
  CAST <left paren>  DISTINCT AS SOURCE <right paren> 
      WITH <cast to source identifier> 

<cast to source identifier> ::=
  <identifier> 

<method specification list> ::=
  <method specification>  [ { <comma>  <method specification>  }... ]

<method specification> ::=
    <original method specification> 
  | <overriding method specification> 

<original method specification> ::=
  <partial method specification>  [ SELF AS RESULT ] [ SELF AS LOCATOR ]
      [ <method characteristics>  ]

<overriding method specification> ::=
  OVERRIDING <partial method specification> 

<partial method specification> ::=
  [ INSTANCE | STATIC | CONSTRUCTOR ]
      METHOD <method name>  <SQL parameter declaration list> 
      <returns clause> 
      [ SPECIFIC <specific method name>  ]

<specific method name> ::=
  [ <schema name>  <period>  ]<qualified identifier> 

<method characteristics> ::=
  <method characteristic> ...

<method characteristic> ::=
    <language clause> 
  | <parameter style clause> 
  | <deterministic characteristic> 
  | <SQL-data access indication> 
  | <null-call clause> 

<attribute definition> ::=
  <attribute name>  <data type> 
      [ <attribute default>  ]
      [ <collate clause>  ]

<attribute default> ::=
  <default clause> 

<alter type statement> ::=
  ALTER TYPE <schema-resolved user-defined type name>  <alter type action> 

<alter type action> ::=
    <add attribute definition> 
  | <drop attribute definition> 
  | <add original method specification> 
  | <add overriding method specification> 
  | <drop method specification> 

<add attribute definition> ::=
  ADD ATTRIBUTE <attribute definition> 

<drop attribute definition> ::=
  DROP ATTRIBUTE <attribute name>  RESTRICT

<add original method specification> ::=
  ADD <original method specification> 

<add overriding method specification> ::=
  ADD <overriding method specification> 

<drop method specification> ::=
  DROP <specific method specification designator>  RESTRICT

<specific method specification designator> ::=
  [ INSTANCE | STATIC | CONSTRUCTOR ]
      METHOD <method name>  <data type list> 

<drop data type statement> ::=
  DROP TYPE <schema-resolved user-defined type name>  <drop behavior> 

<SQL-invoked routine> ::=
  <schema routine> 

<schema routine> ::=
    <schema procedure> 
  | <schema function> 

<schema procedure> ::=
  CREATE <SQL-invoked procedure> 

<schema function> ::=
  CREATE <SQL-invoked function> 

<SQL-invoked procedure> ::=
  PROCEDURE <schema qualified routine name>  <SQL parameter declaration list> 
      <routine characteristics> 
      <routine body> 

<SQL-invoked function> ::=
  { <function specification>  | <method specification designator>  } <routine body> 

<SQL parameter declaration list> ::=
  <left paren>  [ <SQL parameter declaration> 
      [ { <comma>  <SQL parameter declaration>  }... ] ] <right paren> 

<SQL parameter declaration> ::=
  [ <parameter mode>  ] [ <SQL parameter name>  ] <parameter type>  [ RESULT ]

<parameter mode> ::=
    IN
  | OUT
  | INOUT

<parameter type> ::=
  <data type>  [ <locator indication>  ]

<locator indication> ::=
  AS LOCATOR

<function specification> ::=
  FUNCTION <schema qualified routine name>  <SQL parameter declaration list> 
      <returns clause> 
      <routine characteristics> 
      [ <dispatch clause>  ]

<method specification designator> ::=
    SPECIFIC METHOD <specific method name> 
  | [ INSTANCE | STATIC | CONSTRUCTOR ]
      METHOD <method name>  <SQL parameter declaration list> 
      [ <returns clause>  ]
      FOR <schema-resolved user-defined type name> 

<routine characteristics> ::=
  [ <routine characteristic> ... ]

<routine characteristic> ::=
    <language clause> 
  | <parameter style clause> 
  | SPECIFIC <specific name> 
  | <deterministic characteristic> 
  | <SQL-data access indication> 
  | <null-call clause> 
  | <returned result sets characteristic> 
  | <savepoint level indication> 

<savepoint level indication> ::=
    NEW SAVEPOINT LEVEL
  | OLD SAVEPOINT LEVEL

<returned result sets characteristic> ::=
  DYNAMIC RESULT SETS <maximum returned result sets> 

<parameter style clause> ::=
  PARAMETER STYLE <parameter style> 

<dispatch clause> ::=
  STATIC DISPATCH

<returns clause> ::=
  RETURNS <returns type> 

<returns type> ::=
    <returns data type>  [ <result cast>  ]
  | <returns table type> 

<returns table type> ::=
  TABLE <table function column list> 

<table function column list> ::=
  <left paren>  <table function column list element> 
      [ { <comma>  <table function column list element>  }... ] <right paren> 

<table function column list element> ::=
  <column name>  <data type> 

<result cast> ::=
  CAST FROM <result cast from type> 

<result cast from type> ::=
  <data type>  [ <locator indication>  ]

<returns data type> ::=
  <data type>  [ <locator indication>  ]

<routine body> ::=
    <SQL routine spec> 
  | <external body reference> 

<SQL routine spec> ::=
  [ <rights clause>  ] <SQL routine body> 

<rights clause> ::=
    SQL SECURITY INVOKER
  | SQL SECURITY DEFINER

<SQL routine body> ::=
  <SQL procedure statement> 

<external body reference> ::=
  EXTERNAL [ NAME <external routine name>  ]
      [ <parameter style clause>  ]
      [ <transform group specification>  ]
      [ <external security clause>  ]

<external security clause> ::=
    EXTERNAL SECURITY DEFINER
  | EXTERNAL SECURITY INVOKER
  | EXTERNAL SECURITY IMPLEMENTATION DEFINED

<parameter style> ::=
    SQL
  | GENERAL

<deterministic characteristic> ::=
    DETERMINISTIC
  | NOT DETERMINISTIC

<SQL-data access indication> ::=
    NO SQL
  | CONTAINS SQL
  | READS SQL DATA
  | MODIFIES SQL DATA

<null-call clause> ::=
    RETURNS NULL ON NULL INPUT
  | CALLED ON NULL INPUT

<maximum returned result sets> ::=
  <unsigned integer> 

<transform group specification> ::=
  TRANSFORM GROUP { <single group specification>  | <multiple group specification>  }

<single group specification> ::=
  <group name> 

<multiple group specification> ::=
  <group specification>  [ { <comma>  <group specification>  }... ]

<group specification> ::=
  <group name>  FOR TYPE <path-resolved user-defined type name> 

<alter routine statement> ::=
  ALTER <specific routine designator> 
      <alter routine characteristics>  <alter routine behavior> 

<alter routine characteristics> ::=
  <alter routine characteristic> ...

<alter routine characteristic> ::=
    <language clause> 
  | <parameter style clause> 
  | <SQL-data access indication> 
  | <null-call clause> 
  | <returned result sets characteristic> 
  | NAME <external routine name> 

<alter routine behavior> ::=
  RESTRICT

<drop routine statement> ::=
  DROP <specific routine designator>  <drop behavior> 

<user-defined cast definition> ::=
  CREATE CAST <left paren>  <source data type>  AS <target data type>  <right paren> 
      WITH <cast function> 
      [ AS ASSIGNMENT ]

<cast function> ::=
  <specific routine designator> 

<source data type> ::=
  <data type> 

<target data type> ::=
  <data type> 

<drop user-defined cast statement> ::=
  DROP CAST <left paren>  <source data type>  AS <target data type>  <right paren> 
      <drop behavior> 

<user-defined ordering definition> ::=
  CREATE ORDERING FOR <schema-resolved user-defined type name>  <ordering form> 

<ordering form> ::=
    <equals ordering form> 
  | <full ordering form> 

<equals ordering form> ::=
  EQUALS ONLY BY <ordering category> 

<full ordering form> ::=
  ORDER FULL BY <ordering category> 

<ordering category> ::=
    <relative category> 
  | <map category> 
  | <state category> 

<relative category> ::=
  RELATIVE WITH <relative function specification> 

<map category> ::=
  MAP WITH <map function specification> 

<state category> ::=
  STATE [ <specific name>  ]

<relative function specification> ::=
  <specific routine designator> 

<map function specification> ::=
  <specific routine designator> 

<drop user-defined ordering statement> ::=
  DROP ORDERING FOR <schema-resolved user-defined type name>  <drop behavior> 

<transform definition> ::=
  CREATE { TRANSFORM | TRANSFORMS } FOR
      <schema-resolved user-defined type name>  <transform group> ...

<transform group> ::=
  <group name>  <left paren>  <transform element list>  <right paren> 

<group name> ::=
  <identifier> 

<transform element list> ::=
  <transform element>  [ <comma>  <transform element>  ]

<transform element> ::=
    <to sql> 
  | <from sql> 

<to sql> ::=
  TO SQL WITH <to sql function> 

<from sql> ::=
  FROM SQL WITH <from sql function> 

<to sql function> ::=
  <specific routine designator> 

<from sql function> ::=
  <specific routine designator> 

<alter transform statement> ::=
  ALTER { TRANSFORM | TRANSFORMS }
      FOR <schema-resolved user-defined type name>  <alter group> ...

<alter group> ::=
  <group name>  <left paren>  <alter transform action list>  <right paren> 

<alter transform action list> ::=
  <alter transform action>  [ { <comma>  <alter transform action>  }... ]

<alter transform action> ::=
    <add transform element list> 
  | <drop transform element list> 

<add transform element list> ::=
  ADD <left paren>  <transform element list>  <right paren> 

<drop transform element list> ::=
  DROP <left paren>  <transform kind> 
      [ <comma>  <transform kind>  ] <drop behavior>  <right paren> 

<transform kind> ::=
    TO SQL
  | FROM SQL

<drop transform statement> ::=
  DROP { TRANSFORM | TRANSFORMS } <transforms to be dropped> 
      FOR <schema-resolved user-defined type name>  <drop behavior> 

<transforms to be dropped> ::=
    ALL
  | <transform group element> 

<transform group element> ::=
  <group name> 

<sequence generator definition> ::=
  CREATE SEQUENCE <sequence generator name>  [ <sequence generator options>  ]

<sequence generator options> ::=
  <sequence generator option>  ...

<sequence generator option> ::=
    <sequence generator data type option> 
  | <common sequence generator options> 

<common sequence generator options> ::=
  <common sequence generator option>  ...

<common sequence generator option> ::=
    <sequence generator start with option> 
  | <basic sequence generator option> 

<basic sequence generator option> ::=
    <sequence generator increment by option> 
  | <sequence generator maxvalue option> 
  | <sequence generator minvalue option> 
  | <sequence generator cycle option> 

<sequence generator data type option> ::=
  AS <data type> 

<sequence generator start with option> ::=
  START WITH <sequence generator start value> 

<sequence generator start value> ::=
  <signed numeric literal> 

<sequence generator increment by option> ::=
  INCREMENT BY <sequence generator increment> 

<sequence generator increment> ::=
  <signed numeric literal> 

<sequence generator maxvalue option> ::=
    MAXVALUE <sequence generator max value> 
  | NO MAXVALUE

<sequence generator max value> ::=
  <signed numeric literal> 

<sequence generator minvalue option> ::=
    MINVALUE <sequence generator min value> 
  | NO MINVALUE

<sequence generator min value> ::=
  <signed numeric literal> 

<sequence generator cycle option> ::=
    CYCLE
  | NO CYCLE

<alter sequence generator statement> ::=
  ALTER SEQUENCE <sequence generator name>  <alter sequence generator options> 

<alter sequence generator options> ::=
  <alter sequence generator option> ...

<alter sequence generator option> ::=
    <alter sequence generator restart option> 
  | <basic sequence generator option> 

<alter sequence generator restart option> ::=
  RESTART WITH <sequence generator restart value> 

<sequence generator restart value> ::=
  <signed numeric literal> 

<drop sequence generator statement> ::=
  DROP SEQUENCE <sequence generator name>  <drop behavior> 

<grant statement> ::=
    <grant privilege statement> 
  | <grant role statement> 

<grant privilege statement> ::=
  GRANT <privileges>  TO <grantee>  [ { <comma>  <grantee>  }... ]
      [ WITH HIERARCHY OPTION ]
      [ WITH GRANT OPTION ]
      [ GRANTED BY <grantor>  ]

<privileges> ::=
  <object privileges>  ON <object name> 

<object name> ::=
    [ TABLE ] <table name> 
  |DOMAIN <domain name> 
  | COLLATION <collation name> 
  | CHARACTER SET <character set name> 
  | TRANSLATION <transliteration name> 
  | TYPE <schema-resolved user-defined type name> 
  | SEQUENCE <sequence generator name> 
  | <specific routine designator> 

<object privileges> ::=
    ALL PRIVILEGES
  | <action>  [ { <comma>  <action>  }... ]

<action> ::=
    SELECT
  | SELECT <left paren>  <privilege column list>  <right paren> 
  | SELECT <left paren>  <privilege method list>  <right paren> 
  | DELETE
  | INSERT [ <left paren>  <privilege column list>  <right paren>  ]
  | UPDATE [ <left paren>  <privilege column list>  <right paren>  ]
  | REFERENCES [ <left paren>  <privilege column list>  <right paren>  ]
  | USAGE
  | TRIGGER
  | UNDER
  | EXECUTE

<privilege method list> ::=
  <specific routine designator>  [ { <comma>  <specific routine designator>  }... ]

<privilege column list> ::=
  <column name list> 

<grantee> ::=
    PUBLIC
  | <authorization identifier> 

<grantor> ::=
    CURRENT_USER
  | CURRENT_ROLE

<role definition> ::=
  CREATE ROLE <role name>  [ WITH ADMIN <grantor>  ]

<grant role statement> ::=
  GRANT <role granted>  [ { <comma>  <role granted>  }... ]
      TO <grantee>  [ { <comma>  <grantee>  }... ]
      [ WITH ADMIN OPTION ]
      [ GRANTED BY <grantor>  ]

<role granted> ::=
  <role name> 

<drop role statement> ::=
  DROP ROLE <role name> 

<revoke statement> ::=
    <revoke privilege statement> 
  | <revoke role statement> 

<revoke privilege statement> ::=
  REVOKE [ <revoke option extension>  ] <privileges> 
      FROM <grantee>  [ { <comma>  <grantee>  }... ]
      [ GRANTED BY <grantor>  ]
      <drop behavior> 

<revoke option extension> ::=
    GRANT OPTION FOR
  | HIERARCHY OPTION FOR

<revoke role statement> ::=
  REVOKE [ ADMIN OPTION FOR ] <role revoked>  [ { <comma>  <role revoked>  }... ]
      FROM <grantee>  [ { <comma>  <grantee>  }... ]
      [ GRANTED BY <grantor>  ]
      <drop behavior> 

<role revoked> ::=
  <role name> 

<SQL-client module definition> ::=
  <module name clause>  <language clause>  <module authorization clause> 
      [ <module path specification>  ]
      [ <module transform group specification>  ]
      [ <module collations>  ]
      [ <temporary table declaration> ... ]
      <module contents> ...

<module authorization clause> ::=
    SCHEMA <schema name> 
  | AUTHORIZATION <module authorization identifier> 
      [ FOR STATIC { ONLY | AND DYNAMIC } ]
  | SCHEMA <schema name>  AUTHORIZATION <module authorization identifier> 
      [ FOR STATIC { ONLY | AND DYNAMIC } ]

<module authorization identifier> ::=
  <authorization identifier> 

<module path specification> ::=
  <path specification> 

<module transform group specification> ::=
  <transform group specification> 

<module collations> ::=
  <module collation specification> ...

<module collation specification> ::=
  COLLATION <collation name>  [ FOR <character set specification list>  ]

<character set specification list> ::=
  <character set specification>  [ { <comma>  <character set specification>  }... ]

<module contents> ::=
    <declare cursor> 
  | <dynamic declare cursor> 
  | <externally-invoked procedure> 

<module name clause> ::=
  MODULE [ <SQL-client module name>  ] [ <module character set specification>  ]

<module character set specification> ::=
  NAMES ARE <character set specification> 

<externally-invoked procedure> ::=
  PROCEDURE <procedure name>  <host parameter declaration list>  <semicolon> 
      <SQL procedure statement>  <semicolon> 

<host parameter declaration list> ::=
  <left paren>  <host parameter declaration> 
      [ { <comma>  <host parameter declaration>  }... ] <right paren> 

<host parameter declaration> ::=
    <host parameter name>  <host parameter data type> 
  | <status parameter> 

<host parameter data type> ::=
  <data type>  [ <locator indication>  ]

<status parameter> ::=
  SQLSTATE

<SQL procedure statement> ::=
  <SQL executable statement> 

<SQL executable statement> ::=
    <SQL schema statement> 
  | <SQL data statement> 
  | <SQL control statement> 
  |<SQL transaction statement> 
  | <SQL connection statement> 
  | <SQL session statement> 
  | <SQL diagnostics statement> 
  | <SQL dynamic statement> 

<SQL schema statement> ::=
    <SQL schema definition statement> 
  | <SQL schema manipulation statement> 

<SQL schema definition statement> ::=
    <schema definition> 
  | <table definition> 
  | <view definition> 
  | <SQL-invoked routine> 
  | <grant statement> 
  | <role definition> 
  | <domain definition> 
  | <character set definition> 
  | <collation definition> 
  | <transliteration definition> 
  | <assertion definition> 
  | <trigger definition> 
  | <user-defined type definition> 
  | <user-defined cast definition> 
  | <user-defined ordering definition> 
  | <transform definition> 
  | <sequence generator definition> 

<SQL schema manipulation statement> ::=
    <drop schema statement> 
  | <alter table statement> 
  | <drop table statement> 
  | <drop view statement> 
  | <alter routine statement> 
  |   <drop routine statement> 
  |   <drop user-defined cast statement> 
  |   <revoke statement> 
  |   <drop role statement> 
  |   <alter domain statement> 
  |   <drop domain statement> 
  |   <drop character set statement> 
  |   <drop collation statement> 
  |   <drop transliteration statement> 
  |   <drop assertion statement> 
  |   <drop trigger statement> 
  |   <alter type statement> 
  |   <drop data type statement> 
  |   <drop user-defined ordering statement> 
  |   <alter transform statement> 
  |   <drop transform statement> 
  |   <alter sequence generator statement> 
  |   <drop sequence generator statement> 

<SQL data statement> ::=
    <open statement> 
  | <fetch statement> 
  | <close statement> 
  | <select statement: single row> 
  | <free locator statement> 
  | <hold locator statement> 
  | <SQL data change statement> 

<SQL data change statement> ::=
    <delete statement: positioned> 
  | <delete statement: searched> 
  | <insert statement> 
  | <update statement: positioned> 
  | <update statement: searched> 
  | <merge statement> 

<SQL control statement> ::=
    <call statement> 
  | <return statement> 

<SQL transaction statement> ::=
    <start transaction statement> 
  | <set transaction statement> 
  | <set constraints mode statement> 
  | <savepoint statement> 
  | <release savepoint statement> 
  | <commit statement> 
  | <rollback statement> 

<SQL connection statement> ::=
    <connect statement> 
  | <set connection statement> 
  | <disconnect statement> 

<SQL session statement> ::=
    <set session user identifier statement> 
  | <set role statement> 
  | <set local time zone statement> 
  |   <set   session characteristics statement> 
  |   <set   catalog statement> 
  |   <set   schema statement> 
  |   <set   names statement> 
  |   <set   path statement> 
  |   <set   transform group statement> 
  |   <set   session collation statement> 

<SQL diagnostics statement> ::=
  <get diagnostics statement> 

<SQL dynamic statement> ::=
    <SQL descriptor statement> 
  | <prepare statement> 
  | <deallocate prepared statement> 
  | <describe statement> 
  | <execute statement> 
  | <execute immediate statement> 
  | <SQL dynamic data statement> 

<SQL dynamic data statement> ::=
    <allocate cursor statement> 
  | <dynamic open statement> 
  | <dynamic fetch statement> 
  | <dynamic close statement> 
  | <dynamic delete statement: positioned> 
  | <dynamic update statement: positioned> 

<SQL descriptor statement> ::=
    <allocate descriptor statement> 
  | <deallocate descriptor statement> 
  | <set descriptor statement> 
  | <get descriptor statement> 

<declare cursor> ::=
  DECLARE <cursor name>  <cursor properties> 
      FOR <cursor specification> 

<cursor properties> ::=
  [ <cursor sensitivity>  ] [ <cursor scrollability>  ] CURSOR
      [ <cursor holdability>  ]
      [ <cursor returnability>  ]

<cursor sensitivity> ::=
    SENSITIVE
  | INSENSITIVE
  | ASENSITIVE

<cursor scrollability> ::=
    SCROLL
  | NO SCROLL

<cursor holdability> ::=
    WITH HOLD
  | WITHOUT HOLD

<cursor returnability> ::=
    WITH RETURN
  | WITHOUT RETURN

<cursor specification> ::=
  <query expression>  [ <order by clause>  ] [ <updatability clause>  ]

<updatability clause> ::=
  FOR { READ ONLY | UPDATE [ OF <column name list>  ] }

<order by clause> ::=
  ORDER BY <sort specification list> 

<open statement> ::=
  OPEN <cursor name> 

<fetch statement> ::=
  FETCH [ [ <fetch orientation>  ] FROM ] <cursor name>  INTO <fetch target list> 

<fetch orientation> ::=
    NEXT
  | PRIOR
  | FIRST
  | LAST
  | { ABSOLUTE | RELATIVE } <simple value specification> 

<fetch target list> ::=
  <target specification>  [ { <comma>  <target specification>  }... ]

<close statement> ::=
  CLOSE <cursor name> 

<select statement: single row> ::=
  SELECT [ <set quantifier>  ] <select list> 
      INTO <select target list> 
      <table expression> 

<select target list> ::=
  <target specification>  [ { <comma>  <target specification>  }... ]

<delete statement: positioned> ::=
  DELETE FROM <target table>  [ [ AS ] <correlation name>  ]
      WHERE CURRENT OF <cursor name> 

<target table> ::=
    <table name> 
  | ONLY <left paren>  <table name>  <right paren> 

<delete statement: searched> ::=
  DELETE FROM <target table>  [ [ AS ] <correlation name>  ]
      [ WHERE <search condition>  ]

<insert statement> ::=
  INSERT INTO <insertion target>  <insert columns and source> 

<insertion target> ::=
  <table name> 

<insert columns and source> ::=
    <from subquery> 
  | <from constructor> 
  | <from default> 

<from subquery> ::=
  [ <left paren>  <insert column list>  <right paren>  ]
      [ <override clause>  ]
      <query expression> 

<from constructor> ::=
  [ <left paren>  <insert column list>  <right paren>  ]
      [ <override clause>  ]
      <contextually typed table value constructor> 

<override clause> ::=
    OVERRIDING USER VALUE
  | OVERRIDING SYSTEM VALUE

<from default> ::=
  DEFAULT VALUES

<insert column list> ::=
  <column name list> 

<merge statement> ::=
  MERGE INTO <target table>  [ [ AS ] <merge correlation name>  ]
      USING <table reference> 
      ON <search condition>  <merge operation specification> 

<merge correlation name> ::=
  <correlation name> 

<merge operation specification> ::=
  <merge when clause> ...

<merge when clause> ::=
    <merge when matched clause> 
  | <merge when not matched clause> 

<merge when matched clause> ::=
  WHEN MATCHED THEN <merge update specification> 

<merge when not matched clause> ::=
  WHEN NOT MATCHED THEN <merge insert specification> 

<merge update specification> ::=
  UPDATE SET <set clause list> 

<merge insert specification> ::=
  INSERT [ <left paren>  <insert column list>  <right paren>  ]
      [ <override clause>  ]
      VALUES <merge insert value list> 

<merge insert value list> ::=
  <left paren> 
      <merge insert value element>  [ { <comma>  <merge insert value element>  }... ]
      <right paren> 

<merge insert value element> ::=
    <value expression> 
  | <contextually typed value specification> 

<update statement: positioned> ::=
  UPDATE <target table>  [ [ AS ] <correlation name>  ]
      SET <set clause list> 
      WHERE CURRENT OF <cursor name> 

<update statement: searched> ::=
  UPDATE <target table>  [ [ AS ] <correlation name>  ]
      SET <set clause list> 
      [ WHERE <search condition>  ]

<set clause list> ::=
  <set clause>  [ { <comma>  <set clause>  }... ]

<set clause> ::=
    <multiple column assignment> 
  | <set target>  <equals operator>  <update source> 

<set target> ::=
    <update target> 
  | <mutated set clause> 

<multiple column assignment> ::=
  <set target list>  <equals operator>  <assigned row> 

<set target list> ::=
  <left paren>  <set target>  [ { <comma>  <set target>  }... ] <right paren> 

<assigned row> ::=
  <contextually typed row value expression> 

<update target> ::=
    <object column> 
  | <object column> 
      <left bracket or trigraph>  <simple value specification>  <right bracket or trigraph> 

<object column> ::=
  <column name> 

<mutated set clause> ::=
  <mutated target>  <period>  <method name> 

<mutated target> ::=
    <object column> 
  | <mutated set clause> 

<update source> ::=
    <value expression> 
  | <contextually typed value specification> 

<temporary table declaration> ::=
  DECLARE LOCAL TEMPORARY TABLE <table name>  <table element list> 
      [ ON COMMIT <table commit action>  ROWS ]

<free locator statement> ::=
  FREE LOCATOR <locator reference>  [ { <comma>  <locator reference>  }... ]

<locator reference> ::=
    <host parameter name> 
  | <embedded variable name> 
  | <dynamic parameter specification> 

<hold locator statement> ::=
  HOLD LOCATOR <locator reference>  [ { <comma>  <locator reference>  }... ]

<call statement> ::=
  CALL <routine invocation> 

<return statement> ::=
  RETURN <return value> 

<return value> ::=
    <value expression> 
  | NULL

<start transaction statement> ::=
  START TRANSACTION [ <transaction characteristics>  ]

<set transaction statement> ::=
  SET [ LOCAL ] TRANSACTION <transaction characteristics> 

<transaction characteristics> ::=
      [ <transaction mode>  [ { <comma>  <transaction mode>  }... ] ]

<transaction mode> ::=
    <isolation level> 
  | <transaction access mode> 
  | <diagnostics size> 

<transaction access mode> ::=
    READ ONLY
  | READ WRITE

<isolation level> ::=
  ISOLATION LEVEL <level of isolation> 

<level of isolation> ::=
    READ UNCOMMITTED
  | READ COMMITTED
  | REPEATABLE READ
  | SERIALIZABLE

<diagnostics size> ::=
  DIAGNOSTICS SIZE <number of conditions> 

<number of conditions> ::=
  <simple value specification> 

<set constraints mode statement> ::=
  SET CONSTRAINTS <constraint name list>  { DEFERRED | IMMEDIATE }

<constraint name list> ::=
    ALL
  | <constraint name>  [ { <comma>  <constraint name>  }... ]

<savepoint statement> ::=
  SAVEPOINT <savepoint specifier> 

<savepoint specifier> ::=
  <savepoint name> 

<release savepoint statement> ::=
  RELEASE SAVEPOINT <savepoint specifier> 

<commit statement> ::=
  COMMIT [ WORK ] [ AND [ NO ] CHAIN ]
17.8 <rollback statement>

<rollback statement> ::=
  ROLLBACK [ WORK ] [ AND [ NO ] CHAIN ] [ <savepoint clause>  ]

<savepoint clause> ::=
  TO SAVEPOINT <savepoint specifier> 

<connect statement> ::=
  CONNECT TO <connection target> 

<connection target> ::=
    <SQL-server name>  [ AS <connection name>  ] [ USER <connection user name>  ]
  | DEFAULT

<set connection statement> ::=
  SET CONNECTION <connection object> 

<connection object> ::=
    DEFAULT
  | <connection name> 

<disconnect statement> ::=
  DISCONNECT <disconnect object> 

<disconnect object> ::=
    <connection object> 
  | ALL
  | CURRENT

<set session characteristics statement> ::=
  SET SESSION CHARACTERISTICS AS <session characteristic list> 

<session characteristic list> ::=
  <session characteristic>  [ { <comma>  <session characteristic>  }... ]

<session characteristic> ::=
  <session transaction characteristics> 

<session transaction characteristics> ::=
  TRANSACTION <transaction mode>  [ { <comma>  <transaction mode>  }... ]

<set session user identifier statement> ::=
  SET SESSION AUTHORIZATION <value specification> 

<set role statement> ::=
  SET ROLE <role specification> 

<role specification> ::=
    <value specification> 
  | NONE

<set local time zone statement> ::=
  SET TIME ZONE <set time zone value> 

<set time zone value> ::=
    <interval value expression> 
  | LOCAL

<set catalog statement> ::=
  SET <catalog name characteristic> 

<catalog name characteristic> ::=
  CATALOG <value specification> 

<set schema statement> ::=
  SET <schema name characteristic> 

<schema name characteristic> ::=
  SCHEMA <value specification> 

<set names statement> ::=
  SET <character set name characteristic> 

<character set name characteristic> ::=
  NAMES <value specification> 

<set path statement> ::=
  SET <SQL-path characteristic> 

<SQL-path characteristic> ::=
  PATH <value specification> 

<set transform group statement> ::=
  SET <transform group characteristic> 

<transform group characteristic> ::=
    DEFAULT TRANSFORM GROUP <value specification> 
  | TRANSFORM GROUP FOR TYPE <path-resolved user-defined type name>  <value specification> 

<set session collation statement> ::=
    SET COLLATION <collation specification>  [ FOR <character set specification list>  ]
  | SET NO COLLATION [ FOR <character set specification list>  ]

<collation specification> ::=
  <value specification> 

<allocate descriptor statement> ::=
  ALLOCATE [ SQL ] DESCRIPTOR <descriptor name>  [ WITH MAX <occurrences>  ]

<occurrences> ::=
  <simple value specification> 

<deallocate descriptor statement> ::=
  DEALLOCATE [ SQL ] DESCRIPTOR <descriptor name> 

<get descriptor statement> ::=
  GET [ SQL ] DESCRIPTOR <descriptor name>  <get descriptor information> 

<get descriptor information> ::=
    <get header information>  [ { <comma>  <get header information>  }... ]
  | VALUE <item number>  <get item information> 
      [ { <comma>  <get item information>  }... ]

<get header information> ::=
  <simple target specification 1>  <equals operator>  <header item name> 

<header item name> ::=
    COUNT
  | KEY_TYPE
  | DYNAMIC_FUNCTION
  | DYNAMIC_FUNCTION_CODE
  | TOP_LEVEL_COUNT

<get item information> ::=
  <simple target specification 2>  <equals operator>  <descriptor item name> 

<item number> ::=
  <simple value specification> 

<simple target specification 1> ::=
  <simple target specification> 

<simple target specification 2> ::=
  <simple target specification> 

<descriptor item name> ::=
    CARDINALITY
  | CHARACTER_SET_CATALOG
  | CHARACTER_SET_NAME
  | CHARACTER_SET_SCHEMA
  | COLLATION_CATALOG
  | COLLATION_NAME
  | COLLATION_SCHEMA
  | DATA
  | DATETIME_INTERVAL_CODE
  | DATETIME_INTERVAL_PRECISION
  | DEGREE
  | INDICATOR
  | KEY_MEMBER
  | LENGTH
  | LEVEL
  | NAME
  | NULLABLE
  |   OCTET_LENGTH
  |   PARAMETER_MODE
  |   PARAMETER_ORDINAL_POSITION
  |   PARAMETER_SPECIFIC_CATALOG
  |   PARAMETER_SPECIFIC_NAME
  |   PARAMETER_SPECIFIC_SCHEMA
  |   PRECISION
  |   RETURNED_CARDINALITY
  |   RETURNED_LENGTH
  |   RETURNED_OCTET_LENGTH
  |   SCALE
  |   SCOPE_CATALOG
  |   SCOPE_NAME
  |   SCOPE_SCHEMA
  |   TYPE
  |   UNNAMED
  |   USER_DEFINED_TYPE_CATALOG
  |   USER_DEFINED_TYPE_NAME
  |   USER_DEFINED_TYPE_SCHEMA
  |   USER_DEFINED_TYPE_CODE

<set descriptor statement> ::=
  SET [ SQL ] DESCRIPTOR <descriptor name>  <set descriptor information> 

<set descriptor information> ::=
    <set header information>  [ { <comma>  <set header information>  }... ]
  | VALUE <item number>  <set item information> 
      [ { <comma>  <set item information>  }... ]

<set header information> ::=
  <header item name>  <equals operator>  <simple value specification 1>