PARSE SQL NAME CLAUSE_TYPE ADD_COLUMN COLUMN_ATTRIBUTE NOT_NULL DEFAULT ALTER TABLE ADD ( ) PARSE SQL NAME CLAUSE_TYPE DROP_COLUMN ALTER TABLE DROP ( ) NO_DEFAULT VIRTUAL_REAL_CHANGE CHANGE_LONG_DATATYPE CHANGE_LOB_DATATYPE CUSTOMER_AREA COLUMN_POSITION PARSE SQL NAME CLAUSE_TYPE MODIFY_COLUMN COLUMN_ATTRIBUTE DEFAULT DEFAULT NULL NOT_NULL SIZE_DECREASE SIZE_INCREASE DATA_TYPE RENAME_COLUMN ALTER TABLE MODIFY ( ) ALTER TABLE RENAME CONSTRAINT TO ALTER TABLE MODIFY CONSTRAINT ALTER TABLE MODIFY ( NULL) ALTER TABLE MODIFY ( ) ALTER TABLE RENAME COLUMN TO PARSE SQL