::= 'A*'
| 'ABSOLUTE*'
| 'ACTION*'
| 'ADA*'
| 'ADD*'
| 'ADMIN*'
| 'AFTER*'
| 'ALWAYS*'
| 'ASC*'
| 'ASSERTION*'
| 'ASSIGNMENT*'
| 'ATTRIBUTE*'
| 'ATTRIBUTES*'
| 'BEFORE*'
| 'BERNOULLI*'
| 'BREADTH*'
| 'C*'
| 'CASCADE*'
| 'CATALOG*'
| 'CATALOG_NAME*'
| 'CHAIN*'
| 'CHAINING*'
| 'CHARACTER_SET_CATALOG*'
| 'CHARACTER_SET_NAME*'
| 'CHARACTER_SET_SCHEMA*'
| 'CHARACTERISTICS*'
| 'CHARACTERS*'
| 'CLASS_ORIGIN*'
| 'COBOL*'
| 'COLLATION*'
| 'COLLATION_CATALOG*'
| 'COLLATION_NAME*'
| 'COLLATION_SCHEMA*'
| 'COLUMNS*'
| 'COLUMN_NAME*'
| 'COMMAND_FUNCTION*'
| 'COMMAND_FUNCTION_CODE*'
| 'COMMITTED*'
| 'CONDITIONAL*'
| 'CONDITION_NUMBER*'
| 'CONNECTION*'
| 'CONNECTION_NAME*'
| 'CONSTRAINT_CATALOG*'
| 'CONSTRAINT_NAME*'
| 'CONSTRAINT_SCHEMA*'
| 'CONSTRAINTS*'
| 'CONSTRUCTOR*'
| 'CONTINUE*'
| 'CURSOR_NAME*'
| 'DATA*'
| 'DATETIME_INTERVAL_CODE*'
| 'DATETIME_INTERVAL_PRECISION*'
| 'DEFAULTS*'
| 'DEFERRABLE*'
| 'DEFERRED*'
| 'DEFINED*'
| 'DEFINER*'
| 'DEGREE*'
| 'DEPTH*'
| 'DERIVED*'
| 'DESC*'
| 'DESCRIBE_CATALOG*'
| 'DESCRIBE_NAME*'
| 'DESCRIBE_PROCEDURE_SPECIFIC_CATALOG*'
| 'DESCRIBE_PROCEDURE_SPECIFIC_NAME*'
| 'DESCRIBE_PROCEDURE_SPECIFIC_SCHEMA*'
| 'DESCRIBE_SCHEMA*'
| 'DESCRIPTOR*'
| 'DIAGNOSTICS*'
| 'DISPATCH*'
| 'DOMAIN*'
| 'DYNAMIC_FUNCTION*'
| 'DYNAMIC_FUNCTION_CODE*'
| 'ENCODING*'
| 'ENFORCED*'
| 'ERROR*'
| 'EXCLUDE*'
| 'EXCLUDING*'
| 'EXPRESSION*'
| 'FINAL*'
| 'FINISH*'
| 'FINISH_CATALOG*'
| 'FINISH_NAME*'
| 'FINISH_PROCEDURE_SPECIFIC_CATALOG*'
| 'FINISH_PROCEDURE_SPECIFIC_NAME*'
| 'FINISH_PROCEDURE_SPECIFIC_SCHEMA*'
| 'FINISH_SCHEMA*'
| 'FIRST*'
| 'FLAG*'
| 'FOLLOWING*'
| 'FORMAT*'
| 'FORTRAN*'
| 'FOUND*'
| 'FULFILL*'
| 'FULFILL_CATALOG*'
| 'FULFILL_NAME*'
| 'FULFILL_PROCEDURE_SPECIFIC_CATALOG*'
| 'FULFILL_PROCEDURE_SPECIFIC_NAME*'
| 'FULFILL_PROCEDURE_SPECIFIC_SCHEMA*'
| 'FULFILL_SCHEMA*'
| 'G*'
| 'GENERAL*'
| 'GENERATED*'
| 'GO*'
| 'GOTO*'
| 'GRANTED*'
| 'HAS_PASS_THROUGH_COLUMNS*'
| 'HAS_PASS_THRU_COLS*'
| 'HIERARCHY*'
| 'IGNORE*'
| 'IMMEDIATE*'
| 'IMMEDIATELY*'
| 'IMPLEMENTATION*'
| 'INCLUDING*'
| 'INCREMENT*'
| 'INITIALLY*'
| 'INPUT*'
| 'INSTANCE*'
| 'INSTANTIABLE*'
| 'INSTEAD*'
| 'INVOKER*'
| 'ISOLATION*'
| 'IS_PRUNABLE*'
| 'JSON*'
| 'K*'
| 'KEEP*'
| 'KEY*'
| 'KEYS*'
| 'KEY_MEMBER*'
| 'KEY_TYPE*'
| 'LAST*'
| 'LENGTH*'
| 'LEVEL*'
| 'LOCATOR*'
| 'M*'
| 'MAP*'
| 'MATCHED*'
| 'MAXVALUE*'
| 'MESSAGE_LENGTH*'
| 'MESSAGE_OCTET_LENGTH*'
| 'MESSAGE_TEXT*'
| 'MINVALUE*'
| 'MORE*'
| 'MUMPS*'
| 'NAME*'
| 'NAMES*'
| 'NESTED*'
| 'NESTING*'
| 'NEXT*'
| 'NFC*'
| 'NFD*'
| 'NFKC*'
| 'NFKD*'
| 'NORMALIZED*'
| 'NULLABLE*'
| 'NULLS*'
| 'NUMBER*'
| 'OBJECT*'
| 'OCTETS*'
| 'OPTION*'
| 'OPTIONS*'
| 'ORDERING*'
| 'ORDINALITY*'
| 'OTHERS*'
| 'OUTPUT*'
| 'OVERFLOW*'
| 'OVERRIDING*'
| 'P*'
| 'PAD*'
| 'PARAMETER_MODE*'
| 'PARAMETER_NAME*'
| 'PARAMETER_ORDINAL_POSITION*'
| 'PARAMETER_SPECIFIC_CATALOG*'
| 'PARAMETER_SPECIFIC_NAME*'
| 'PARAMETER_SPECIFIC_SCHEMA*'
| 'PARTIAL*'
| 'PASCAL*'
| 'PASS*'
| 'PASSING*'
| 'PAST*'
| 'PATH*'
| 'PLACING*'
| 'PLAN*'
| 'PLI*'
| 'PRECEDING*'
| 'PRESERVE*'
| 'PRIOR*'
| 'PRIVATE*'
| 'PRIVATE_PARAMETERS*'
| 'PRIVATE_PARAMS_S*'
| 'PRIVILEGES*'
| 'PRUNE*'
| 'PUBLIC*'
| 'QUOTES*'
| 'READ*'
| 'RELATIVE*'
| 'REPEATABLE*'
| 'RESPECT*'
| 'RESTART*'
| 'RESTRICT*'
| 'RETURNED_CARDINALITY*'
| 'RETURNED_LENGTH*'
| 'RETURNED_OCTET_LENGTH*'
| 'RETURNED_SQLSTATE*'
| 'RETURNING*'
| 'RETURNS_ONLY_PASS_THROUGH*'
| 'RET_ONLY_PASS_THRU*'
| 'ROLE*'
| 'ROUTINE*'
| 'ROUTINE_CATALOG*'
| 'ROUTINE_NAME*'
| 'ROUTINE_SCHEMA*'
| 'ROW_COUNT*'
| 'SCALAR*'
| '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*'
| 'START_CATALOG*'
| 'START_NAME*'
| 'START_PROCEDURE_SPECIFIC_CATALOG*'
| 'START_PROCEDURE_SPECIFIC_NAME*'
| 'START_PROCEDURE_SPECIFIC_SCHEMA*'
| 'START_SCHEMA*'
| 'STATE*'
| 'STATEMENT*'
| 'STRING*'
| 'STRUCTURE*'
| 'STYLE*'
| 'SUBCLASS_ORIGIN*'
| 'T*'
| 'TABLE_NAME*'
| 'TABLE_SEMANTICS*'
| 'TEMPORARY*'
| 'THROUGH*'
| 'TIES*'
| 'TOP_LEVEL_COUNT*'
| 'TRANSACTION*'
| 'TRANSACTION_ACTIVE*'
| 'TRANSACTIONS_COMMITTED*'
| 'TRANSACTIONS_ROLLED_BACK*'
| 'TRANSFORM*'
| 'TRANSFORMS*'
| 'TRIGGER_CATALOG*'
| 'TRIGGER_NAME*'
| 'TRIGGER_SCHEMA*'
| 'TYPE*'
| 'UNBOUNDED*'
| 'UNCOMMITTED*'
| 'UNCONDITIONAL*'
| 'UNDER*'
| 'UNNAMED*'
| 'USAGE*'
| 'USER_DEFINED_TYPE_CATALOG*'
| 'USER_DEFINED_TYPE_CODE*'
| 'USER_DEFINED_TYPE_NAME*'
| 'USER_DEFINED_TYPE_SCHEMA*'
| 'UTF16*'
| 'UTF32*'
| 'UTF8*'
| 'VIEW*'
| 'WORK*'
| 'WRAPPER*'
| 'WRITE*'
| 'ZONE*'