Question

I am trying to select all rows from a database where display = ‘Y’ and announcement != null. How can I check a column to make sure it contains a value?

 $qry = "select *   
         from   school
     where  display='Y'
     order by name, announcement, last_update";

Answer 1

$qry = "select *       
         from   school
         where  display='Y'
         and (announcement != '' AND announcement IS NOT null)
         order by name, announcement, last_update";

This caters for blank fields as well as null fields.