title: SQL column does not fetching NULL
body: <p>My table has a column with NULL displaying in it for 5 rows. But when I tried to fetch those records with the below query it results in 0 rows fetched. Why is it so.? What else I can try for the same.? I am using SSMS 2012.</p>
  <p><code>select * from table_name where coumn_name is NULL</code></p>
  <p>Thanks in Advance</p>