title: WCF Session and connection to DB
body: <p>I created my WCF service that make a connection to SQL Server and returns the results of queries.</p>
  
  <p>My problem is: how can I save the request from the client <strong>and not make a connection for each request from client?</strong></p>
  
  <p>The scenario I want is:</p>
  
  <ol>
  <li>enter user and password of SQL Server in the client and make a connection on the server (do I need to encrypt the data??)</li>
  <li>keep session for 30 sec. </li>
  </ol>
  
  <p>Thanks</p>