title: Query to return rows where column does not contain a certain substring
body: <p>Is there something I can put in my WHERE clause to only select fields from a column where that field does not contain a certain string. In this case, I am looking through to make sure the codes in this particular field do not have a "cs" in it. The code could be something like cs023 or bg425, just to give you a little bit more of an idea what I'm looking to do.</p>