about null values!

Posted by user329820 on Stack Overflow See other posts from Stack Overflow or by user329820
Published on 2010-05-01T04:17:56Z Indexed on 2010/05/01 4:27 UTC
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mysql

Hi I have a question that if we declare a variable and then do not set it explicitly to null value then it would be null outomatically ,i mean that the below code will return true or false ? thanks

DECLARE @val CHAR(4)



If @val =  NULL

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