IN Operator SQL

Question

I have a table called NUMS with a single column n.
And I fill values 1,2,3,4,5,null in it.

Now a query

SELECT n FROM Nums 
 WHERE n IN (1, 2,         


        

Answer 1

If an IN list contains a NULL value anywhere, the result of the entire list is UNKNOWN

With the correct default of ANSI NULLS, when you compare NULL with NULL the result is not true, but UNKNOWN