Home
MySQL Tutorial
Introduction
Select Query
Database
Table
Table Join
Subquery
Insert Update Delete
Logic Operator
View
Data Types
Procedure Function
Cursor
Trigger
Date Time Functions
Comparison Functions Operators
Aggregate Functions
Cast Functions Operators
Control Flow Functions
Encryption Compression Functions
Information Functions
Math Numeric Functions
Miscellaneous Functions
String Functions
Regular Expressions
Data Dictionary
MySQL Utilities
Privilege
IS_FREE_LOCK « Miscellaneous Functions « MySQL Tutorial
MySQL Tutorial
Miscellaneous Functions
IS_FREE_LOCK
22.6.IS_FREE_LOCK
22.6.1.
IS_FREE_LOCK(str): Checks whether the lock named str is free to use (that is, not locked).