title: Simple check for SELECT query empty result
body: <p>Can anyone point out how to check if a select query returns non empty result set?</p>
  
  <p>For example I have next query:</p>
  
  <pre><code>SELECT * FROM service s WHERE s.service_id = ?;
  </code></pre>
  
  <p>Should I do something like next:</p>
  
  <pre><code>ISNULL(SELECT * FROM service s WHERE s.service_id = ?)
  </code></pre>
  
  <p>to test if result set is not empty?</p>