title: mysql case satisfies more than one condition
body: <p>I am wondering which condition in the case is going to be used by the system, assuming that more that one condition is satisfied.</p>
  
  <pre><code> CASE 
      WHEN id IN($cID) THEN `count`+1
      WHEN id IN($prev_catID) THEN `count`-1  
   END
  </code></pre>
  
  <p>Will it be the first one, or the last?</p>
  
  <p>In the other programming, there is a BREAK added to each condition to terminate the process. Does the BREAK will do in mysql?</p>