troubleshooting Question

What's wrong with the following statement. It keeps returning Null?

Avatar of nick210577
nick210577 asked on
Microsoft SQL Server 2005SQL
3 Comments1 Solution223 ViewsLast Modified:
I've never used an SQL if statement before.  @DaysUsed does in certain circumstances  = Null but I need it to be zero for later calculations.  @DaysUsed is a int.  I don't understand why if the statement is true it doesn't set the variable to 0?
If @DaysUsed = NULL 
Select @DaysUsed = 0
Select @DaysUsed
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