Assignment Operator (=)
Syntax
identifier = expr
Contents
Description
The equal sign is used as both an assignment operator in certain contexts, and as a comparison operator. When used as assignment operator, the value on the right is assigned to the variable (or column, in some contexts) on the left.
Since its use can be ambiguous, unlike the := assignment operator, the = assignment operator cannot be used in all contexts, and is only valid as part of a SET statement, or the SET clause of an UPDATE statement
This operator works with both user-defined variables and local variables.
Examples
UPDATE table_name SET x = 2 WHERE x > 100;
SET @x = 1, @y := 2;
Content reproduced on this site is the property of its respective owners,
and this content is not reviewed in advance by MariaDB. The views, information and opinions
expressed by this content do not necessarily represent those of MariaDB or any other party.
