title: mysql concate check not null
body: <pre><code>SELECT Concat(mp.cHospital ,',',mp.cHospital1,',',mp.cHospital2) as Hospital FROM TBL
  </code></pre>
  
  <p>I dont want to return null value, </p>
  
  <p>how to check not null or how to make isset cond in query</p>