This section provides information about keywords and reserved words in MySQL 8.2.
The following list shows the keywords and reserved words in MySQL 8.2, along with changes to individual words from version to version. Reserved keywords are marked with (R).
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ACCESSIBLE
(R)ACCOUNT
ACTION
ACTIVE
ADD
(R)ADMIN
AFTER
AGAINST
AGGREGATE
ALGORITHM
ALL
(R)ALTER
(R)ALWAYS
ANALYZE
(R)AND
(R)ANY
ARRAY
AS
(R)ASC
(R)ASCII
ASENSITIVE
(R)AT
ATTRIBUTE
AUTHENTICATION
AUTOEXTEND_SIZE
AUTO_INCREMENT
AVG
AVG_ROW_LENGTH
BACKUP
BEFORE
(R)BEGIN
BETWEEN
(R)BIGINT
(R)BINARY
(R)BINLOG
BIT
BLOB
(R)BLOCK
BOOL
BOOLEAN
BOTH
(R)BTREE
BUCKETS
BULK
BY
(R)BYTE
CACHE
CALL
(R)CASCADE
(R)CASCADED
CASE
(R)CATALOG_NAME
CHAIN
CHALLENGE_RESPONSE
CHANGE
(R)CHANGED
CHANNEL
CHAR
(R)CHARACTER
(R)CHARSET
CHECK
(R)CHECKSUM
CIPHER
CLASS_ORIGIN
CLIENT
CLONE
CLOSE
COALESCE
CODE
COLLATE
(R)COLLATION
COLUMN
(R)COLUMNS
COLUMN_FORMAT
COLUMN_NAME
COMMENT
COMMIT
COMMITTED
COMPACT
COMPLETION
COMPONENT
COMPRESSED
COMPRESSION
CONCURRENT
CONDITION
(R)CONNECTION
CONSISTENT
CONSTRAINT
(R)CONSTRAINT_CATALOG
CONSTRAINT_NAME
CONSTRAINT_SCHEMA
CONTAINS
CONTEXT
CONTINUE
(R)CONVERT
(R)CPU
CREATE
(R)CROSS
(R)CUBE
(R)CUME_DIST
(R)CURRENT
CURRENT_DATE
(R)CURRENT_TIME
(R)CURRENT_TIMESTAMP
(R)CURRENT_USER
(R)CURSOR
(R)CURSOR_NAME
DATA
DATABASE
(R)DATABASES
(R)DATAFILE
DATE
DATETIME
DAY
DAY_HOUR
(R)DAY_MICROSECOND
(R)DAY_MINUTE
(R)DAY_SECOND
(R)DEALLOCATE
DEC
(R)DECIMAL
(R)DECLARE
(R)DEFAULT
(R)DEFAULT_AUTH
DEFINER
DEFINITION
DELAYED
(R)DELAY_KEY_WRITE
DELETE
(R)DENSE_RANK
(R)DESC
(R)DESCRIBE
(R)DESCRIPTION
DETERMINISTIC
(R)DIAGNOSTICS
DIRECTORY
DISABLE
DISCARD
DISK
DISTINCT
(R)DISTINCTROW
(R)DIV
(R)DO
DOUBLE
(R)DROP
(R)DUAL
(R)DUMPFILE
DUPLICATE
DYNAMIC
EACH
(R)ELSE
(R)ELSEIF
(R)EMPTY
(R)ENABLE
ENCLOSED
(R)ENCRYPTION
END
ENDS
ENFORCED
ENGINE
ENGINES
ENGINE_ATTRIBUTE
ENUM
ERROR
ERRORS
ESCAPE
ESCAPED
(R)EVENT
EVENTS
EVERY
EXCEPT
(R)EXCHANGE
EXCLUDE
EXECUTE
EXISTS
(R)EXIT
(R)EXPANSION
EXPIRE
EXPLAIN
(R)EXPORT
EXTENDED
EXTENT_SIZE
FACTOR
FAILED_LOGIN_ATTEMPTS
FALSE
(R)FAST
FAULTS
FETCH
(R)FIELDS
FILE
FILE_BLOCK_SIZE
FILTER
FINISH
FIRST
FIRST_VALUE
(R)FIXED
FLOAT
(R)FLOAT4
(R)FLOAT8
(R)FLUSH
FOLLOWING
FOLLOWS
FOR
(R)FORCE
(R)FOREIGN
(R)FORMAT
FOUND
FROM
(R)FULL
FULLTEXT
(R)FUNCTION
(R)
GENERAL
GENERATE
GENERATED
(R)GEOMCOLLECTION
GEOMETRY
GEOMETRYCOLLECTION
GET
(R)GET_FORMAT
GET_MASTER_PUBLIC_KEY
GET_SOURCE_PUBLIC_KEY
GLOBAL
GRANT
(R)GRANTS
GROUP
(R)GROUPING
(R)GROUPS
(R)GROUP_REPLICATION
GTIDS
GTID_ONLY
HANDLER
HASH
HAVING
(R)HELP
HIGH_PRIORITY
(R)HISTOGRAM
HISTORY
HOST
HOSTS
HOUR
HOUR_MICROSECOND
(R)HOUR_MINUTE
(R)HOUR_SECOND
(R)
IDENTIFIED
IF
(R)IGNORE
(R)IGNORE_SERVER_IDS
IMPORT
IN
(R)INACTIVE
INDEX
(R)INDEXES
INFILE
(R)INITIAL
INITIAL_SIZE
INITIATE
INNER
(R)INOUT
(R)INSENSITIVE
(R)INSERT
(R)INSERT_METHOD
INSTALL
INSTANCE
INT
(R)INT1
(R)INT2
(R)INT3
(R)INT4
(R)INT8
(R)INTEGER
(R)INTERSECT
(R)INTERVAL
(R)INTO
(R)INVISIBLE
INVOKER
IO
IO_AFTER_GTIDS
(R)IO_BEFORE_GTIDS
(R)IO_THREAD
IPC
IS
(R)ISOLATION
ISSUER
ITERATE
(R)
JOIN
(R)JSON
JSON_TABLE
(R)JSON_VALUE
KEY
(R)KEYRING
KEYS
(R)KEY_BLOCK_SIZE
KILL
(R)
LAG
(R)LANGUAGE
LAST
LAST_VALUE
(R)LATERAL
(R)LEAD
(R)LEADING
(R)LEAVE
(R)LEAVES
LEFT
(R)LESS
LEVEL
LIKE
(R)LIMIT
(R)LINEAR
(R)LINES
(R)LINESTRING
LIST
LOAD
(R)LOCAL
LOCALTIME
(R)LOCALTIMESTAMP
(R)LOCK
(R)LOCKED
LOCKS
LOG
LOGFILE
LOGS
LONG
(R)LONGBLOB
(R)LONGTEXT
(R)LOOP
(R)LOW_PRIORITY
(R)
MASTER
MASTER_AUTO_POSITION
MASTER_BIND
(R)MASTER_COMPRESSION_ALGORITHMS
MASTER_CONNECT_RETRY
MASTER_DELAY
MASTER_HEARTBEAT_PERIOD
MASTER_HOST
MASTER_LOG_FILE
MASTER_LOG_POS
MASTER_PASSWORD
MASTER_PORT
MASTER_PUBLIC_KEY_PATH
MASTER_RETRY_COUNT
MASTER_SSL
MASTER_SSL_CA
MASTER_SSL_CAPATH
MASTER_SSL_CERT
MASTER_SSL_CIPHER
MASTER_SSL_CRL
MASTER_SSL_CRLPATH
MASTER_SSL_KEY
MASTER_SSL_VERIFY_SERVER_CERT
(R)MASTER_TLS_CIPHERSUITES
MASTER_TLS_VERSION
MASTER_USER
MASTER_ZSTD_COMPRESSION_LEVEL
MATCH
(R)MAXVALUE
(R)MAX_CONNECTIONS_PER_HOUR
MAX_QUERIES_PER_HOUR
MAX_ROWS
MAX_SIZE
MAX_UPDATES_PER_HOUR
MAX_USER_CONNECTIONS
MEDIUM
MEDIUMBLOB
(R)MEDIUMINT
(R)MEDIUMTEXT
(R)MEMBER
MEMORY
MERGE
MESSAGE_TEXT
MICROSECOND
MIDDLEINT
(R)MIGRATE
MINUTE
MINUTE_MICROSECOND
(R)MINUTE_SECOND
(R)MIN_ROWS
MOD
(R)MODE
MODIFIES
(R)MODIFY
MONTH
MULTILINESTRING
MULTIPOINT
MULTIPOLYGON
MUTEX
MYSQL_ERRNO
NAME
NAMES
NATIONAL
NATURAL
(R)NCHAR
NDB
NDBCLUSTER
NESTED
NETWORK_NAMESPACE
NEVER
NEW
NEXT
NO
NODEGROUP
NONE
NOT
(R)NOWAIT
NO_WAIT
NO_WRITE_TO_BINLOG
(R)NTH_VALUE
(R)NTILE
(R)NULL
(R)NULLS
NUMBER
NUMERIC
(R)NVARCHAR
OF
(R)OFF
OFFSET
OJ
OLD
ON
(R)ONE
ONLY
OPEN
OPTIMIZE
(R)OPTIMIZER_COSTS
(R)OPTION
(R)OPTIONAL
OPTIONALLY
(R)OPTIONS
OR
(R)ORDER
(R)ORDINALITY
ORGANIZATION
OTHERS
OUT
(R)OUTER
(R)OUTFILE
(R)OVER
(R)OWNER
PACK_KEYS
PAGE
PARALLEL
(R)PARSER
PARSE_TREE
PARTIAL
PARTITION
(R)PARTITIONING
PARTITIONS
PASSWORD
PASSWORD_LOCK_TIME
PATH
PERCENT_RANK
(R)PERSIST
PERSIST_ONLY
PHASE
PLUGIN
PLUGINS
PLUGIN_DIR
POINT
POLYGON
PORT
PRECEDES
PRECEDING
PRECISION
(R)PREPARE
PRESERVE
PREV
PRIMARY
(R)PRIVILEGES
PRIVILEGE_CHECKS_USER
PROCEDURE
(R)PROCESS
PROCESSLIST
PROFILE
PROFILES
PROXY
PURGE
(R)
QUARTER
QUERY
QUICK
RANDOM
RANGE
(R)RANK
(R)READ
(R)READS
(R)READ_ONLY
READ_WRITE
(R)REAL
(R)REBUILD
RECOVER
RECURSIVE
(R)REDO_BUFFER_SIZE
REDUNDANT
REFERENCE
REFERENCES
(R)REGEXP
(R)REGISTRATION
RELAY
RELAYLOG
RELAY_LOG_FILE
RELAY_LOG_POS
RELAY_THREAD
RELEASE
(R)RELOAD
REMOVE
RENAME
(R)REORGANIZE
REPAIR
REPEAT
(R)REPEATABLE
REPLACE
(R)REPLICA
REPLICAS
REPLICATE_DO_DB
REPLICATE_DO_TABLE
REPLICATE_IGNORE_DB
REPLICATE_IGNORE_TABLE
REPLICATE_REWRITE_DB
REPLICATE_WILD_DO_TABLE
REPLICATE_WILD_IGNORE_TABLE
REPLICATION
REQUIRE
(R)REQUIRE_ROW_FORMAT
RESET
RESIGNAL
(R)RESOURCE
RESPECT
RESTART
RESTORE
RESTRICT
(R)RESUME
RETAIN
RETURN
(R)RETURNED_SQLSTATE
RETURNING
RETURNS
REUSE
REVERSE
REVOKE
(R)RIGHT
(R)RLIKE
(R)ROLE
ROLLBACK
ROLLUP
ROTATE
ROUTINE
ROW
(R)ROWS
(R)ROW_COUNT
ROW_FORMAT
ROW_NUMBER
(R)RTREE
S3
SAVEPOINT
SCHEDULE
SCHEMA
(R)SCHEMAS
(R)SCHEMA_NAME
SECOND
SECONDARY
SECONDARY_ENGINE
SECONDARY_ENGINE_ATTRIBUTE
SECONDARY_LOAD
SECONDARY_UNLOAD
SECOND_MICROSECOND
(R)SECURITY
SELECT
(R)SENSITIVE
(R)SEPARATOR
(R)SERIAL
SERIALIZABLE
SERVER
SESSION
SET
(R)SHARE
SHOW
(R)SHUTDOWN
SIGNAL
(R)SIGNED
SIMPLE
SKIP
SLAVE
SLOW
SMALLINT
(R)SNAPSHOT
SOCKET
SOME
SONAME
SOUNDS
SOURCE
SOURCE_AUTO_POSITION
SOURCE_BIND
SOURCE_COMPRESSION_ALGORITHMS
SOURCE_CONNECT_RETRY
SOURCE_DELAY
SOURCE_HEARTBEAT_PERIOD
SOURCE_HOST
SOURCE_LOG_FILE
SOURCE_LOG_POS
SOURCE_PASSWORD
SOURCE_PORT
SOURCE_PUBLIC_KEY_PATH
SOURCE_RETRY_COUNT
SOURCE_SSL
SOURCE_SSL_CA
SOURCE_SSL_CAPATH
SOURCE_SSL_CERT
SOURCE_SSL_CIPHER
SOURCE_SSL_CRL
SOURCE_SSL_CRLPATH
SOURCE_SSL_KEY
SOURCE_SSL_VERIFY_SERVER_CERT
SOURCE_TLS_CIPHERSUITES
SOURCE_TLS_VERSION
SOURCE_USER
SOURCE_ZSTD_COMPRESSION_LEVEL
SPATIAL
(R)SPECIFIC
(R)SQL
(R)SQLEXCEPTION
(R)SQLSTATE
(R)SQLWARNING
(R)SQL_AFTER_GTIDS
SQL_AFTER_MTS_GAPS
SQL_BEFORE_GTIDS
SQL_BIG_RESULT
(R)SQL_BUFFER_RESULT
SQL_CALC_FOUND_ROWS
(R)SQL_NO_CACHE
SQL_SMALL_RESULT
(R)SQL_THREAD
SQL_TSI_DAY
SQL_TSI_HOUR
SQL_TSI_MINUTE
SQL_TSI_MONTH
SQL_TSI_QUARTER
SQL_TSI_SECOND
SQL_TSI_WEEK
SQL_TSI_YEAR
SRID
SSL
(R)STACKED
START
STARTING
(R)STARTS
STATS_AUTO_RECALC
STATS_PERSISTENT
STATS_SAMPLE_PAGES
STATUS
STOP
STORAGE
STORED
(R)STRAIGHT_JOIN
(R)STREAM
STRING
SUBCLASS_ORIGIN
SUBJECT
SUBPARTITION
SUBPARTITIONS
SUPER
SUSPEND
SWAPS
SWITCHES
SYSTEM
(R)
TABLE
(R)TABLES
TABLESPACE
TABLE_CHECKSUM
TABLE_NAME
TEMPORARY
TEMPTABLE
TERMINATED
(R)TEXT
THAN
THEN
(R)THREAD_PRIORITY
TIES
TIME
TIMESTAMP
TIMESTAMPADD
TIMESTAMPDIFF
TINYBLOB
(R)TINYINT
(R)TINYTEXT
(R)TLS
TO
(R)TRAILING
(R)TRANSACTION
TRIGGER
(R)TRIGGERS
TRUE
(R)TRUNCATE
TYPE
TYPES
UNBOUNDED
UNCOMMITTED
UNDEFINED
UNDO
(R)UNDOFILE
UNDO_BUFFER_SIZE
UNICODE
UNINSTALL
UNION
(R)UNIQUE
(R)UNKNOWN
UNLOCK
(R)UNREGISTER
UNSIGNED
(R)UNTIL
UPDATE
(R)UPGRADE
URL
USAGE
(R)USE
(R)USER
USER_RESOURCES
USE_FRM
USING
(R)UTC_DATE
(R)UTC_TIME
(R)UTC_TIMESTAMP
(R)
VALIDATION
VALUE
VALUES
(R)VARBINARY
(R)VARCHAR
(R)VARCHARACTER
(R)VARIABLES
VARYING
(R)VCPU
VIEW
VIRTUAL
(R)VISIBLE
WAIT
WARNINGS
WEEK
WEIGHT_STRING
WHEN
(R)WHERE
(R)WHILE
(R)WINDOW
(R)WITH
(R)WITHOUT
WORK
WRAPPER
WRITE
(R)
X509
XA
XID
XML
XOR
(R)
YEAR
YEAR_MONTH
(R)
ZEROFILL
(R)ZONE
The following list shows the keywords and reserved words that are added in MySQL 8.2, compared to MySQL 8.1. Reserved keywords are marked with (R).
GTIDS
LOG
PARALLEL
(R)S3