title: Executing a Stored Procedure in Oracle
body: <p>I have a stored procedure, on Toad for Oracle I am calling the procedure 
  using</p>
  
  <pre><code>SELECT FROM PKGName.ProcedureName(1,'10/10/2010','10/23/2010',7,7) 
    FROM DUAL
  </code></pre>
  
  <p>I have 3 output parameter on this procedure as well I am getting an</p>
  
  <blockquote>
    <p>ORA-00904: PKGName.ProcedureName : Invalid Identifier</p>
  </blockquote>
  
  <p>Do have to mention the output parameter on the procedure call as well? If yes how can I use it?</p>