title: MySQL : DELETE query return when rows are not found
body: <p>When I try to DELETE something from MySQL database that does not exist the query returns TRUE.</p>
  
  <p>I want to know when nothing is deleted. Do I need to have a previous query to find if there are rows to be deleted?</p>
  
  <p>Is there a more simple way to do this? I mean, using a single query?</p>
  
  <p>I'm using php to connect to the database with the mysqli_query() function.</p>