SQL Server uses reserved words for database operations.
Reserved keywords are part of the SQL Server T-SQL grammar.
SQL Server has claimed current and future reserved words.
Keywords can be used as identifiers by placing them between [ ] (square brackets).
Keywords that are currently used by T-SQL.
| ADD | EXCEPT | PERCENT |
| ALL | EXEC | PLAN |
| ALTER | EXECUTE | PRECISION |
| AND | EXISTS | PRIMARY |
| ANY | EXIT | |
| AS | FETCH | PROC |
| ASC | FILE | PROCEDURE |
| AUTHORIZATION | FILLFACTOR | PUBLIC |
| BACKUP | FOR | RAISERROR |
| BEGIN | FOREIGN | READ |
| BETWEEN | FREETEXT | READTEXT |
| BREAK | FREETEXTTABLE | RECONFIGURE |
| BROWSE | FROM | REFERENCES |
| BULK | FULL | REPLICATION |
| BY | FUNCTION | RESTORE |
| CASCADE | GOTO | RESTRICT |
| CASE | GRANT | RETURN |
| CHECK | GROUP | REVOKE |
| CHECKPOINT | HAVING | RIGHT |
| CLOSE | HOLDLOCK | ROLLBACK |
| CLUSTERED | IDENTITY | ROWCOUNT |
| COALESCE | IDENTITY_INSERT | ROWGUIDCOL |
| COLLATE | IDENTITYCOL | RULE |
| COLUMN | IF | SAVE |
| COMMIT | IN | SCHEMA |
| COMPUTE | INDEX | SELECT |
| CONSTRAINT | INNER | SESSION_USER |
| CONTAINS | INSERT | SET |
| CONTAINSTABLE | INTERSECT | SETUSER |
| CONTINUE | INTO | SHUTDOWN |
| CONVERT | IS | SOME |
| CREATE | JOIN | STATISTICS |
| CROSS | KEY | SYSTEM_USER |
| CURRENT | KILL | TABLE |
| CURRENT_DATE | LEFT | TEXTSIZE |
| CURRENT_TIME | LIKE | THEN |
| CURRENT_TIMESTAMP | LINENO | TO |
| CURRENT_USER | LOAD | TOP |
| CURSOR | NATIONAL | TRAN |
| DATABASE | NOCHECK | TRANSACTION |
| DBCC | NONCLUSTERED | TRIGGER |
| DEALLOCATE | NOT | TRUNCATE |
| DECLARE | NULL | TSEQUAL |
| DEFAULT | NULLIF | UNION |
| DELETE | OF | UNIQUE |
| DENY | OFF | UPDATE |
| DESC | OFFSETS | UPDATETEXT |
| DISK | ON | USE |
| DISTINCT | OPEN | USER |
| DISTRIBUTED | OPENDATASOURCE | VALUES |
| DOUBLE | OPENQUERY | VARYING |
| DROP | OPENROWSET | VIEW |
| DUMMY | OPENXML | WAITFOR |
| DUMP | OPTION | WHEN |
| ELSE | OR | WHERE |
| END | ORDER | WHILE |
| ERRLVL | OUTER | WITH |
| ESCAPE | OVER | WRITETEXT |
Keywords that SQL Server reserves for potential future use.
| ABSOLUTE | FOUND | PRESERVE |
| ACTION | FREE | PRIOR |
| ADMIN | GENERAL | PRIVILEGES |
| AFTER | GET | READS |
| AGGREGATE | GLOBAL | REAL |
| ALIAS | GO | RECURSIVE |
| ALLOCATE | GROUPING | REF |
| ARE | HOST | REFERENCING |
| ARRAY | HOUR | RELATIVE |
| ASSERTION | IGNORE | RESULT |
| AT | IMMEDIATE | RETURNS |
| BEFORE | INDICATOR | ROLE |
| BINARY | INITIALIZE | ROLLUP |
| BIT | INITIALLY | ROUTINE |
| BLOB | INOUT | ROW |
| BOOLEAN | INPUT | ROWS |
| BOTH | INT | SAVEPOINT |
| BREADTH | INTEGER | SCROLL |
| CALL | INTERVAL | SCOPE |
| CASCADED | ISOLATION | SEARCH |
| CAST | ITERATE | SECOND |
| CATALOG | LANGUAGE | SECTION |
| CHAR | LARGE | SEQUENCE |
| CHARACTER | LAST | SESSION |
| CLASS | LATERAL | SETS |
| CLOB | LEADING | SIZE |
| COLLATION | LESS | SMALLINT |
| COMPLETION | LEVEL | SPACE |
| CONNECT | LIMIT | SPECIFIC |
| CONNECTION | LOCAL | SPECIFICTYPE |
| CONSTRAINTS | LOCALTIME | SQL |
| CONSTRUCTOR | LOCALTIMESTAMP | SQLEXCEPTION |
| CORRESPONDING | LOCATOR | SQLSTATE |
| CUBE | MAP | SQLWARNING |
| CURRENT_PATH | MATCH | START |
| CURRENT_ROLE | MINUTE | STATE |
| CYCLE | MODIFIES | STATEMENT |
| DATA | MODIFY | STATIC |
| DATE | MODULE | STRUCTURE |
| DAY | MONTH | TEMPORARY |
| DEC | NAMES | TERMINATE |
| DECIMAL | NATURAL | THAN |
| DEFERRABLE | NCHAR | TIME |
| DEFERRED | NCLOB | TIMESTAMP |
| DEPTH | NEW | TIMEZONE_HOUR |
| DEREF | NEXT | TIMEZONE_MINUTE |
| DESCRIBE | NO | TRAILING |
| DESCRIPTOR | NONE | TRANSLATION |
| DESTROY | NUMERIC | TREAT |
| DESTRUCTOR | OBJECT | TRUE |
| DETERMINISTIC | OLD | UNDER |
| DICTIONARY | ONLY | UNKNOWN |
| DIAGNOSTICS | OPERATION | UNNEST |
| DISCONNECT | ORDINALITY | USAGE |
| DOMAIN | OUT | USING |
| DYNAMIC | OUTPUT | VALUE |
| EACH | PAD | VARCHAR |
| END-EXEC | PARAMETER | VARIABLE |
| EQUALS | PARAMETERS | WHENEVER |
| EVERY | PARTIAL | WITHOUT |
| EXCEPTION | PATH | WORK |
| EXTERNAL | POSTFIX | WRITE |
| FALSE | PREFIX | YEAR |
| FIRST | PREORDER | ZONE |
| FLOAT | PREPARE |
