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MySQL Reserved Words

From WikiOD

MySQL has some special names called reserved words. A reserved word can be used as an identifier for a table, column, etc. only if it's wrapped in backticks (`), otherwise it will give rise to an error.

To avoid such errors, either don't use reserved words as identifiers or wrap the offending identifier in backticks.

Remarks[edit | edit source]

Listed below are all reserved words (from the official documentation):

  • 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_TIME
  • CURRENT_TIMESTAMP
  • CURRENT_USER
  • CURSOR
  • DATABASE
  • DATABASES
  • DAY_HOUR
  • DAY_MICROSECOND
  • DAY_MINUTE
  • DAY_SECOND
  • DEC
  • DECIMAL
  • DECLARE
  • DEFAULT
  • DELAYED
  • DELETE
  • DESC
  • DESCRIBE
  • DETERMINISTIC
  • DISTINCT
  • DISTINCTROW
  • DIV
  • DOUBLE
  • DROP
  • DUAL
  • EACH
  • ELSE
  • ELSEIF
  • ENCLOSED
  • ESCAPED
  • EXISTS
  • EXIT
  • EXPLAIN
  • FALSE
  • FETCH
  • FLOAT
  • FLOAT4
  • FLOAT8
  • FOR
  • FORCE
  • FOREIGN
  • FROM
  • FULLTEXT
  • GENERATED
  • GET
  • GRANT
  • GROUP
  • HAVING
  • HIGH_PRIORITY
  • HOUR_MICROSECOND
  • HOUR_MINUTE
  • HOUR_SECOND
  • IF
  • IGNORE
  • IN
  • INDEX
  • INFILE
  • INNER
  • INOUT
  • INSENSITIVE
  • INSERT
  • INT
  • INT1
  • INT2
  • INT3
  • INT4
  • INT8
  • INTEGER
  • INTERVAL
  • INTO
  • IO_AFTER_GTIDS
  • IO_BEFORE_GTIDS
  • IS
  • ITERATE
  • JOIN
  • KEY
  • KEYS
  • KILL
  • LEADING
  • LEAVE
  • LEFT
  • LIKE
  • LIMIT
  • LINEAR
  • LINES
  • LOAD
  • LOCALTIME
  • LOCALTIMESTAMP
  • LOCK
  • LONG
  • LONGBLOB
  • LONGTEXT
  • LOOP
  • LOW_PRIORITY
  • MASTER_BIND
  • 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
  • ON
  • OPTIMIZE
  • OPTIMIZER_COSTS
  • OPTION
  • OPTIONALLY
  • OR
  • ORDER
  • OUT
  • OUTER
  • OUTFILE
  • PARTITION
  • PRECISION
  • PRIMARY
  • PROCEDURE
  • PURGE
  • RANGE
  • READ
  • READS
  • READ_WRITE
  • REAL
  • REFERENCES
  • REGEXP
  • RELEASE
  • RENAME
  • REPEAT
  • REPLACE
  • REQUIRE
  • RESIGNAL
  • RESTRICT
  • RETURN
  • REVOKE
  • RIGHT
  • RLIKE
  • SCHEMA
  • SCHEMAS
  • SECOND_MICROSECOND
  • SELECT
  • SENSITIVE
  • SEPARATOR
  • SET
  • SHOW
  • SIGNAL
  • SMALLINT
  • SPATIAL
  • SPECIFIC
  • SQL
  • SQLEXCEPTION
  • SQLSTATE
  • SQLWARNING
  • SQL_BIG_RESULT
  • SQL_CALC_FOUND_ROWS
  • SQL_SMALL_RESULT
  • SSL
  • STARTING
  • STORED
  • 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
  • VIRTUAL
  • WHEN
  • WHERE
  • WHILE
  • WITH
  • WRITE
  • XOR
  • YEAR_MONTH
  • ZEROFILL
  • GENERATED
  • OPTIMIZER_COSTS
  • STORED
  • VIRTUAL

Errors due to reserved words[edit | edit source]

When trying to select from a table called order like this

select * from order

the error rises:

Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order' at line 1

Reserved keywords in MySQL need to be escaped with backticks (`)

select * from `order`

to distinguish between a keyword and a table or column name.

See also: Syntax error due to using a reserved word as a table or column name in MySQL.

Credit:Stack_Overflow_Documentation