Certain keywords are reserved by SQL Server because they have particular use in SQL syntax. The keywords can still be used as identifiers but they must be delimited. It is good policy to avoid using them anyway.

Current Reserved Keywords

Here is the list of current reserved keywords as of SQL Server 2000:

ADD EXCEPT PERCENT
ALL EXEC PLAN
ALTER EXECUTE PRECISION
AND EXISTS PRIMARY
ANY EXIT PRINT
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

Future Reserved Keywords

Here is a list of future reserved keywords as of SQL Server 2000:

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  


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