Reserved Words

The following is a list of all reserved words in MariaDB.

Reserved words cannot be used as Identifiers, unless they are quoted.

The definitive list of reserved words for each version can be found by examining the sql/lex.h and sql/sql_yacc.yy files.

Reserved Words

KeywordNotes
ACCESSIBLE
ADD
ALL
ALTER
ANALYZE
AND
AS
ASC
ASENSITIVE
BEFORE
BETWEEN
BIGINT
BINARY
BLOB
BOTH
BY
CALL
CASCADE
CASE
CHANGE
CHAR
CHARACTER
CHECK
COLLATE
COLUMN
CONDITION
CONSTRAINT
CONTINUE
CONVERT
CREATE
CROSS
CURRENT_DATE
CURRENT_ROLE
CURRENT_TIME
CURRENT_TIMESTAMP
CURRENT_USER
CURSOR
DATABASE
DATABASES
DAY_HOUR
DAY_MICROSECOND
DAY_MINUTE
DAY_SECOND
DEC
DECIMAL
DECLARE
DEFAULT
DELAYED
DELETE
DELETE_DOMAIN_ID
DESC
DESCRIBE
DETERMINISTIC
DISTINCT
DISTINCTROW
DIV
DO_DOMAIN_IDS
DOUBLE
DROP
DUAL
EACH
ELSE
ELSEIF
ENCLOSED
ESCAPED
EXCEPTAdded in MariaDB 10.3.0
EXISTS
EXIT
EXPLAIN
FALSE
FETCH
FLOAT
FLOAT4
FLOAT8
FOR
FORCE
FOREIGN
FROM
FULLTEXT
GENERAL
GRANT
GROUP
HAVING
HIGH_PRIORITY
HOUR_MICROSECOND
HOUR_MINUTE
HOUR_SECOND
IF
IGNORE
IGNORE_DOMAIN_IDS
IGNORE_SERVER_IDS
IN
INDEX
INFILE
INNER
INOUT
INSENSITIVE
INSERT
INT
INT1
INT2
INT3
INT4
INT8
INTEGER
INTERSECTAdded in MariaDB 10.3.0
INTERVAL
INTO
IS
ITERATE
JOIN
KEY
KEYS
KILL
LEADING
LEAVE
LEFT
LIKE
LIMIT
LINEAR
LINES
LOAD
LOCALTIME
LOCALTIMESTAMP
LOCK
LONG
LONGBLOB
LONGTEXT
LOOP
LOW_PRIORITY
MASTER_HEARTBEAT_PERIOD
MASTER_SSL_VERIFY_SERVER_CERT
MATCH
MAXVALUE
MEDIUMBLOB
MEDIUMINT
MEDIUMTEXT
MIDDLEINT
MINUTE_MICROSECOND
MINUTE_SECOND
MOD
MODIFIES
NATURAL
NOT
NO_WRITE_TO_BINLOG
NULL
NUMERIC
OFFSETAdded in MariaDB 10.6.0
ON
OPTIMIZE
OPTION
OPTIONALLY
OR
ORDER
OUT
OUTER
OUTFILE
OVERAdded in MariaDB 10.2.0
PAGE_CHECKSUM
PARSE_VCOL_EXPR
PARTITION
POSITION
PRECISION
PRIMARY
PROCEDURE
PURGE
RANGE
READ
READS
READ_WRITE
REAL
RECURSIVEAdded in MariaDB 10.2.0
REF_SYSTEM_ID
REFERENCES
REGEXP
RELEASE
RENAME
REPEAT
REPLACE
REQUIRE
RESIGNAL
RESTRICT
RETURN
RETURNING
REVOKE
RIGHT
RLIKE
ROWSAdded in MariaDB 10.2.4
SCHEMA
SCHEMAS
SECOND_MICROSECOND
SELECT
SENSITIVE
SEPARATOR
SET
SHOW
SIGNAL
SLOW
SMALLINT
SPATIAL
SPECIFIC
SQL
SQLEXCEPTION
SQLSTATE
SQLWARNING
SQL_BIG_RESULT
SQL_CALC_FOUND_ROWS
SQL_SMALL_RESULT
SSL
STARTING
STATS_AUTO_RECALC
STATS_PERSISTENT
STATS_SAMPLE_PAGES
STRAIGHT_JOIN
TABLE
TERMINATED
THEN
TINYBLOB
TINYINT
TINYTEXT
TO
TRAILING
TRIGGER
TRUE
UNDO
UNION
UNIQUE
UNLOCK
UNSIGNED
UPDATE
USAGE
USE
USING
UTC_DATE
UTC_TIME
UTC_TIMESTAMP
VALUES
VARBINARY
VARCHAR
VARCHARACTER
VARYING
WHEN
WHERE
WHILE
WINDOWAdded in MariaDB 10.2.0. From MariaDB 10.2.12 only disallowed for table aliases.
WITH
WRITE
XOR
YEAR_MONTH
ZEROFILL

Exceptions

Some keywords are exceptions for historical reasons, and are permitted as unquoted identifiers. These include:

Keyword
ACTION
BIT
DATE
ENUM
NO
TEXT
TIME
TIMESTAMP

Oracle Mode

In Oracle mode, from MariaDB 10.3, there are a number of extra reserved words:

KeywordNotes
BODY
ELSIF
GOTO
HISTORY<= MariaDB 10.3.6 only
MINUSFrom MariaDB 10.6.1
OTHERS
PACKAGE
PERIOD<= MariaDB 10.3.6 only
RAISE
ROWNUMFrom MariaDB 10.6.1
ROWTYPE
SYSDATEFrom MariaDB 10.6.1
SYSTEM<= MariaDB 10.3.6 only. Note however that SYSTEM sometimes needs to be quoted to avoid confusion with System-versioned tables.
SYSTEM_TIME<= MariaDB 10.3.6 only
VERSIONING<= MariaDB 10.3.6 only
WITHOUT<= MariaDB 10.3.6 only

Function Names

If the IGNORE_SPACE SQL_MODE flag is set, function names become reserved words.

See Also

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