Reserved SQL keywords

The following reserved keywords should not be used as names for columns, tables, aliases, or other user-defined objects. If you are getting syntax errors, these errors may be due to using one of these reserved words. If you want to use one of these keywords, you need to use quotation marks to prevent the word from being treated as a keyword.

Example

Use the DEC keyword as a data element name.

Copy 
CREATE TABLE t ("dec" numeric)

  • ABSOLUTE

  • ACTION

  • ADD

  • ALL

  • ALLOCATE

  • ALTER

  • AND

  • ANY

  • ARE

  • AS

  • ASC

  • ASSERTION

  • AT

  • AUTHORIZATION

  • AVG

  • BEGIN

  • BETWEEN

  • BINARY

  • BIT

  • BIT_LENGTH

  • BLOB

  • BOOLEAN

  • BOTH

  • BY

  • CASCADE

  • CASCADED

  • CASE

  • CAST

  • CATALOG

  • CHAR

  • CHARACTER

  • CHARACTER_LENGTH

  • CHAR_LENGTH

  • CHECK

  • CHR

  • CLOSE

  • COALESCE

  • COLLATE

  • COLLATION

  • COLUMN

  • COMMIT

  • CONNECT

  • CONNECTION

  • CONSTRAINT

  • CONSTRAINTS

  • CONTINUE

  • CONVERT

  • CORRESPONDING

  • COUNT

  • CREATE

  • CROSS

  • CURDATE

  • CURRENT

  • CURRENT_DATE

  • CURRENT_TIME

  • CURRENT_TIMESTAMP

  • CURRENT_USER

  • CURSOR

  • CURTIME

  • CURTIMESTAMP

  • DATE

  • DATEVAL

  • DAY

  • DAYNAME

  • DAYOFWEEK

  • DEALLOCATE

  • DEC

  • DECIMAL

  • DECLARE

  • DEFAULT

  • DEFERRABLE

  • DEFERRED

  • DELETE

  • DESC

  • DESCRIBE

  • DESCRIPTOR

  • DIAGNOSTICS

  • DISCONNECT

  • DISTINCT

  • DOMAIN

  • DOUBLE

  • DROP

  • ELSE

  • END

  • END_EXEC

  • ESCAPE

  • EVERY

  • EXCEPT

  • EXCEPTION

  • EXEC

  • EXECUTE

  • EXISTS

  • EXTERNAL

  • EXTRACT

  • FALSE

  • FETCH

  • FIRST

  • FLOAT

  • FOR

  • FOREIGN

  • FOUND

  • FROM

  • FULL

  • GET

  • GLOBAL

  • GO

  • GOTO

  • GRANT

  • GROUP

  • HAVING

  • HOUR

  • IDENTITY

  • IMMEDIATE

  • IN

  • INDEX

  • INDICATOR

  • INITIALLY

  • INNER

  • INPUT

  • INSENSITIVE

  • INSERT

  • INT

  • INTEGER

  • INTERSECT

  • INTERVAL

  • INTO

  • IS

  • ISOLATION

  • JOIN

  • KEY

  • LANGUAGE

  • LAST

  • LEADING

  • LEFT

  • LENGTH

  • LEVEL

  • LIKE

  • LOCAL

  • LONGVARBINARY

  • LOWER

  • LTRIM

  • MATCH

  • MAX

  • MIN

  • MINUTE

  • MODULE

  • MONTH

  • MONTHNAME

  • NAMES

  • NATIONAL

  • NATURAL

  • NCHAR

  • NEXT

  • NO

  • NOT

  • NULL

  • NULLIF

  • NUMERIC

  • NUMVAL

  • OCTET_LENGTH

  • OF

  • OFFSET

  • ON

  • ONLY

  • OPEN

  • OPTION

  • OR

  • ORDER

  • OUTER

  • OUTPUT

  • OVERLAPS

  • PAD

  • PART

  • PARTIAL

  • PERCENT

  • POSITION

  • PRECISION

  • PREPARE

  • PRESERVE

  • PRIMARY

  • PRIOR

  • PRIVILEGES

  • PROCEDURE

  • PUBLIC

  • READ

  • REAL

  • REFERENCES

  • RELATIVE

  • RESTRICT

  • REVOKE

  • RIGHT

  • ROLLBACK

  • ROUND

  • ROW

  • ROWID

  • ROWS

  • RTRIM

  • SCHEMA

  • SCROLL

  • SECOND

  • SECTION

  • SELECT

  • SESSION

  • SESSION_USER

  • SET

  • SIZE

  • SMALLINT

  • SOME

  • SPACE

  • SQL

  • SQLCODE

  • SQLERROR

  • SQLSTATE

  • STRVAL

  • SUBSTRING

  • SUM

  • SYSTEM_USER

  • TABLE

  • TEMPORARY

  • THEN

  • TIES

  • TIME

  • TIMESTAMP

  • TIMESTAMPVAL

  • TIMEVAL

  • TIMEZONE_HOUR

  • TIMEZONE_MINUTE

  • TO

  • TODAY

  • TRAILING

  • TRANSACTION

  • TRANSLATE

  • TRANSLATION

  • TRIM

  • TRUE

  • TRUNCATE

  • UNION

  • UNIQUE

  • UNKNOWN

  • UPDATE

  • UPPER

  • USAGE

  • USER

  • USERNAME

  • USING

  • VALUE

  • VALUES

  • VARBINARY

  • VARCHAR

  • VARYING

  • VIEW

  • WHEN

  • WHENEVER

  • WHERE

  • WITH

  • WORK

  • WRITE

  • YEAR

  • ZONE