Microsoft SQL Server Tutorial => Compound assignment operators

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Example

SQL Server 2008 R2

Supported compound operators:

+= Add and assign

-= Subtract and assign

*= Multiply and assign

/= Divide and assign

%= Modulo and assign

&= Bitwise AND and assign

^= Bitwise XOR and assign

|= Bitwise OR and assign

Example usage:

DECLARE @test INT = 42;
SET @test += 1;
PRINT @test;    --43
SET @test -= 1;
PRINT @test;    --42
SET @test *= 2
PRINT @test;    --84
SET @test /= 2;
PRINT @test;    --42

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