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Rule description

• Unary prefix operators should not be repeated

Non-compliant Code Example

DECLARE @Number int;  
SET @Number = 50;  
IF NOT NOT (@Number > 100)  --Non compliant code (Unary operator is repeated)
    PRINT 'The number is greater then 100.';  
ELSE
    PRINT 'The number is less then 100.';

Compliant Code Example

DECLARE @Number int;  
SET @Number = 50;  
IF NOT (@Number < 100)  --Compliant code
    PRINT 'The number is greater then 100.';  
ELSE
    PRINT 'The number is less then 100.';