Oracle reserved words have a special meaning to Oracle and so cannot be redefined. For this reason, you cannot use them to name database objects such as columns, tables, or indexes. For example, in an INSERT statement, the reserved word INTO introduces the tables to which rows will be added.
| Keyword | Keyword | Keyword |
|---|---|---|
ACCESS | ACCOUNT | ACTIVATE |
ADD | ADMIN | ADVISE |
AFTER | ALL | ALL_ROWS |
ALLOCATE | ALTER | ANALYZE |
AND | ANY | ARCHIVE |
ARCHIVELOG | ARRAY | AS |
ASC | AT | AUDIT |
AUTHENTICATED | AUTHORIZATION | AUTOEXTEND |
AUTOMATIC | BACKUP | BECOME |
BEFORE | BEGIN | BETWEEN |
BFILE | BITMAP | BLOB |
BLOCK | BODY | BY |
CACHE | CACHE_INSTANCES | CANCEL |
CASCADE | CAST | CFILE |
CHAINED | CHANGE | CHAR |
CHAR_CS | CHARACTER | CHECK |
CHECKPOINT | CHOOSE | CHUNK |
CLEAR | CLOB | CLONE |
CLOSE | CLOSE_CACHED_OPEN_CURSORS | CLUSTER |
COALESCE | COLUMN | COLUMNS |
COMMENT | COMMIT | COMMITTED |
COMPATIBILITY | COMPILE | COMPLETE |
COMPOSITE_LIMIT | COMPRESS | COMPUTE |
CONNECT | CONNECT_TIME | CONSTRAINT |
CONSTRAINTS | CONTENTS | CONTINUE |
CONTROLFILE | CONVERT | COST |
CPU_PER_CALL | CPU_PER_SESSION | CREATE |
CURRENT | CURRENT_SCHEMA | CURREN_USER |
CURSOR | CYCLE | |
DANGLING | DATABASE | DATAFILE |
DATAFILES | DATAOBJNO | DATE |
DBA | DBHIGH | DBLOW |
DBMAC | DEALLOCATE | DEBUG |
DEC | DECIMAL | DECLARE |
DEFAULT | DEFERRABLE | DEFERRED |
DEGREE | DELETE | DEREF |
DESC | DIRECTORY | DISABLE |
DISCONNECT | DISMOUNT | DISTINCT |
DISTRIBUTED | DML | DOUBLE |
DROP | DUMP | EACH |
ELSE | ENABLE | END |
ENFORCE | ENTRY | ESCAPE |
EXCEPT | EXCEPTIONS | EXCHANGE |
EXCLUDING | EXCLUSIVE | EXECUTE |
EXISTS | EXPIRE | EXPLAIN |
EXTENT | EXTENTS | EXTERNALLY |
FAILED_LOGIN_ATTEMPTS | FALSE | FAST |
FILE | FIRST_ROWS | FLAGGER |
FLOAT | FLOB | FLUSH |
FOR | FORCE | FOREIGN |
FREELIST | FREELISTS | FROM |
FULL | FUNCTION | GLOBAL |
GLOBALLY | GLOBAL_NAME | GRANT |
GROUP | GROUPS | HASH |
HASHKEYS | HAVING | HEADER |
HEAP | IDENTIFIED | IDGENERATORS |
IDLE_TIME | IF | IMMEDIATE |
IN | INCLUDING | INCREMENT |
INDEX | INDEXED | INDEXES |
INDICATOR | IND_PARTITION | INITIAL |
INITIALLY | INITRANS | INSERT |
INSTANCE | INSTANCES | INSTEAD |
INT | INTEGER | INTERMEDIATE |
INTERSECT | INTO | IS |
ISOLATION | ISOLATION_LEVEL | KEEP |
KEY | KILL | LABEL |
LAYER | LESS | LEVEL |
LIBRARY | LIKE | LIMIT |
LINK | LIST | LOB |
LOCAL | LOCK | LOCKED |
LOG | LOGFILE | LOGGING |
LOGICAL_READS_PER_CALL | LOGICAL_READS_PER_SESSION | LONG |
MANAGE | MASTER | MAX |
MAXARCHLOGS | MAXDATAFILES | MAXEXTENTS |
MAXINSTANCES | MAXLOGFILES | MAXLOGHISTORY |
MAXLOGMEMBERS | MAXSIZE | MAXTRANS |
MAXVALUE | MIN | MEMBER |
MINIMUM | MINEXTENTS | MINUS |
MINVALUE | MLSLABEL | MLS_LABEL_FORMAT |
MODE | MODIFY | MOUNT |
MOVE | MTS_DISPATCHERS | MULTISET |
NATIONAL | NCHAR | NCHAR_CS |
NCLOB | NEEDED | NESTED |
NETWORK | NEW | NEXT |
NOARCHIVELOG | NOAUDIT | NOCACHE |
NOCOMPRESS | NOCYCLE | NOFORCE |
NOLOGGING | NOMAXVALUE | NOMINVALUE |
NONE | NOORDER | NOOVERRIDE |
NOPARALLEL | NOPARALLEL | NOREVERSE |
NORMAL | NOSORT | NOT |
NOTHING | NOWAIT | NULL |
NUMBER | NUMERIC | NVARCHAR2 |
OBJECT | OBJNO | OBJNO_REUSE |
OF | OFF | OFFLINE |
OID | OIDINDEX | OLD |
ON | ONLINE | ONLY |
OPCODE | OPEN | OPTIMAL |
OPTIMIZER_GOAL | OPTION | OR |
ORDER | ORGANIZATION | OSLABEL |
OVERFLOW | OWN | PACKAGE |
PARALLEL | PARTITION | PASSWORD |
PASSWORD_GRACE_TIME | PASSWORD_LIFE_TIME | PASSWORD_LOCK_TIME |
PASSWORD_REUSE_MAX | PASSWORD_REUSE_TIME | PASSWORD_VERIFY_FUNCTION |
PCTFREE | PCTINCREASE | PCTTHRESHOLD |
PCTUSED | PCTVERSION | PERCENT |
PERMANENT | PLAN | PLSQL_DEBUG |
POST_TRANSACTION | PRECISION | PRESERVE |
PRIMARY | PRIOR | PRIVATE |
PRIVATE_SGA | PRIVILEGE | PRIVILEGES |
PROCEDURE | PROFILE | PUBLIC |
PURGE | QUEUE | QUOTA |
RANGE | RAW | RBA |
READ | READUP | REAL |
REBUILD | RECOVER | RECOVERABLE |
RECOVERY | REF | REFERENCES |
REFERENCING | REFRESH | RENAME |
REPLACE | RESET | RESETLOGS |
RESIZE | RESOURCE | RESTRICTED |
RETURN | RETURNING | REUSE |
REVERSE | REVOKE | ROLE |
ROLES | ROLLBACK | ROW |
ROWID | ROWNUM | ROWS |
RULE | SAMPLE | SAVEPOINT |
SB4 | SCAN_INSTANCES | SCHEMA |
SCN | SCOPE | SD_ALL |
SD_INHIBIT | SD_SHOW | SEGMENT |
SEG_BLOCK | SEG_FILE | SELECT |
SEQUENCE | SERIALIZABLE | SESSION |
SESSION_CACHED_CURSORS | SESSIONS_PER_USER | SET |
SHARE | SHARED | SHARED_POOL |
SHRINK | SIZE | SKIP |
SKIP_UNUSABLE_INDEXES | SMALLINT | SNAPSHOT |
SOME | SORT | SPECIFICATION |
SPLIT | SQL_TRACE | STANDBY |
START | STATEMENT_ID | STATISTICS |
STOP | STORAGE | STORE |
STRUCTURE | SUCCESSFUL | SWITCH |
SYS_OP_ENFORCE_NOT_NULL$ | SYS_OP_NTCIMG$ | SYNONYM |
SYSDATE | SYSDBA | SYSOPER |
SYSTEM | TABLE | TABLES |
TABLESPACE | TABLESPACE_NO | TABNO |
TEMPORARY | THAN | THE |
THEN | THREAD | TIMESTAMP |
TIME | TO | TOPLEVEL |
TRACE | TRACING | TRANSACTION |
TRANSITIONAL | TRIGGER | TRIGGERS |
TRUE | TRUNCATE | TX |
TYPE | UB2 | UBA |
UID | UNARCHIVED | UNDO |
UNION | UNIQUE | UNLIMITED |
UNLOCK | UNRECOVERABLE | UNTIL |
UNUSABLE | UNUSED | UPDATABLE |
UPDATE | USAGE | USE |
USER | USING | VALIDATE |
VALIDATION | VALUE | VALUES |
VARCHAR | VARCHAR2 | VARYING |
VIEW | WHEN | WHENEVER |
WHERE | WITH | WITHOUT |
WORK | WRITE | WRITEDOWN |
WRITEUP | XID | YEAR |
ZONE |