Miscellaneous Functions
Miscellaneous functions include DEFAULT, GET_LOCK, SLEEP, UUID, etc.
-
GET_LOCK
Obtain LOCK. -
INET6_ATON
Given an IPv6 or IPv4 network address, returns a VARBINARY numeric value. -
INET6_NTOA
Given an IPv6 or IPv4 network address, returns the address as a nonbinary string. -
INET_ATON
Returns numeric value of IPv4 address. -
INET_NTOA
Returns dotted-quad representation of IPv4 address. -
IS_FREE_LOCK
Checks whether lock is free to use. -
IS_IPV4
Whether or not an expression is a valid IPv4 address. -
IS_IPV4_COMPAT
Whether or not an IPv6 address is IPv4-compatible. -
IS_IPV4_MAPPED
Whether an IPv6 address is a valid IPv4-mapped address. -
IS_IPV6
Whether or not an expression is a valid IPv6 address. -
IS_USED_LOCK
Check if lock is in use. -
MASTER_GTID_WAIT
Wait until slave reaches the GTID position. -
MASTER_POS_WAIT
Blocks until the replica has applied all specified updates. -
NAME_CONST
Returns the given value. -
RELEASE_ALL_LOCKS
Releases all named locks held by the current session. -
RELEASE_LOCK
Releases lock obtained with GET_LOCK(). -
SLEEP
Pauses for the given number of seconds. -
SYS_GUID
Returns a globally unique identifier (GUID). -
UUID
Returns a Universal Unique Identifier v1. -
UUID_SHORT
Return short universal identifier. -
UUID_v4
Returns a Universal Unique Identifier v4. -
UUID_v7
Returns a Universal Unique Identifier v7. -
VALUES / VALUE
Refer to columns in INSERT ... ON DUPLICATE KEY UPDATE.
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