SQL语法ABORTALTER AGGREGATEALTER AUDIT POLICYALTER DATABASEALTER DATA SOURCEALTER DEFAULT PRIVILEGESALTER DIRECTORYALTER EXTENSIONALTER FOREIGN TABLEALTER FUNCTIONALTER GROUPALTER INDEXALTER LANGUAGEALTER LARGE OBJECTALTER MASKING POLICYALTER MATERIALIZED VIEWALTER OPERATORALTER PACKAGEALTER PUBLICATIONALTER RESOURCE LABELALTER RESOURCE POOLALTER ROLEALTER ROW LEVEL SECURITY POLICYALTER SCHEMAALTER SEQUENCEALTER SERVERALTER SESSIONALTER SUBSCRIPTIONALTER SYNONYMALTER SYSTEM KILL SESSIONALTER SYSTEM SETALTER TABLEALTER TABLE PARTITIONALTER TABLE SUBPARTITIONALTER TABLESPACEALTER TEXT SEARCH CONFIGURATIONALTER TEXT SEARCH DICTIONARYALTER TRIGGERALTER TYPEALTER USERALTER USER MAPPINGALTER VIEWANALYZE | ANALYSEBEGINCALLCHECKPOINTCLEAN CONNECTIONCLOSECLUSTERCOMMENTCOMMIT | ENDCOMMIT PREPAREDCOPYCREATE AGGREGATECREATE AUDIT POLICYCREATE CASTCREATE CLIENT MASTER KEYCREATE COLUMN ENCRYPTION KEYCREATE DATABASECREATE DATA SOURCECREATE DIRECTORYCREATE EXTENSIONCREATE FOREIGN TABLECREATE FUNCTIONCREATE GROUPCREATE INCREMENTAL MATERIALIZED VIEWCREATE INDEXCREATE LANGUAGECREATE MASKING POLICYCREATE MATERIALIZED VIEWCREATE MODELCREATE OPERATORCREATE PACKAGECREATE PROCEDURECREATE PUBLICATIONCREATE RESOURCE LABELCREATE RESOURCE POOLCREATE ROLECREATE ROW LEVEL SECURITY POLICYCREATE RULECREATE SCHEMACREATE SEQUENCECREATE SERVERCREATE SUBSCRIPTIONCREATE SYNONYMCREATE TABLECREATE TABLE ASCREATE TABLE PARTITIONCREATE TABLESPACECREATE TEXT SEARCH CONFIGURATIONCREATE TEXT SEARCH DICTIONARYCREATE TRIGGERCREATE TYPECREATE USERCREATE USER MAPPINGCREATE VIEWCREATE WEAK PASSWORD DICTIONARYCURSORDEALLOCATEDECLAREDELETEDODROP AGGREGATEDROP AUDIT POLICYDROP CASTDROP CLIENT MASTER KEYDROP COLUMN ENCRYPTION KEYDROP DATABASEDROP DATA SOURCEDROP DIRECTORYDROP EXTENSIONDROP FOREIGN TABLEDROP FUNCTIONDROP GROUPDROP INDEXDROP LANGUAGEDROP MASKING POLICYDROP MATERIALIZED VIEWDROP MODELDROP OPERATORDROP OWNEDDROP PACKAGEDROP PROCEDUREDROP PUBLICATIONDROP RESOURCE LABELDROP RESOURCE POOLDROP ROLEDROP ROW LEVEL SECURITY POLICYDROP RULEDROP SCHEMADROP SEQUENCEDROP SERVERDROP SUBSCRIPTIONDROP SYNONYMDROP TABLEDROP TABLESPACEDROP TEXT SEARCH CONFIGURATIONDROP TEXT SEARCH DICTIONARYDROP TRIGGERDROP TYPEDROP USERDROP USER MAPPINGDROP VIEWDROP WEAK PASSWORD DICTIONARYEXECUTEEXPLAINEXPLAIN PLANFETCHGRANTINSERTLOCKMERGE INTOMOVEPREDICT BYPREPAREPREPARE TRANSACTIONPURGEREASSIGN OWNEDREFRESH INCREMENTAL MATERIALIZED VIEWREFRESH MATERIALIZED VIEWREINDEXRELEASE SAVEPOINTRESETREVOKEROLLBACKROLLBACK PREPAREDROLLBACK TO SAVEPOINTSAVEPOINTSELECTSELECT INTOSETSET CONSTRAINTSSET ROLESET SESSION AUTHORIZATIONSET TRANSACTIONSHOWSHUTDOWNSNAPSHOTSTART TRANSACTIONTIMECAPSULE TABLETRUNCATEUPDATEVACUUMVALUESSHRINKALTER PROCEDUREALTER GLOBAL CONFIGURATIONDROP GLOBAL CONFIGURATION