Assignment Operator (:=)
Syntax
var_name := expr
Description
Assignment operator for assigning a value. The value on the right is assigned to the variable on left.
Unlike the = operator, := can always be used to assign a value to a variable.
This operator works with both user-defined variables and local variables.
When assigning the same value to several variables, LAST_VALUE() can be useful.
Examples
SELECT @x := 10; +----------+ | @x := 10 | +----------+ | 10 | +----------+ SELECT @x, @y := @x; +------+----------+ | @x | @y := @x | +------+----------+ | 10 | 10 | +------+----------+
See Also
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