SQL Server 2008 - Conditional Query

Question

SQL is not one of my strong suits. I have a SQL Server 2008 database. This database has a stored procedure that takes in eight int parameters. For the sake of keeping this q

Answer 1

The pattern (column = @param OR @param IS NULL) will give you optional parameters. You can use NULLIF to neutralize your -1. Even better would be to allow null parameters, instead of using a magic number.

WHERE
   (Customer.IsActive = NULLIF(@isActive, -1) OR NULLIF(@isActive, -1) IS NULL)