title: SQL Server Successful login audit
body: <p>I use SQL Server 2008 R2 and have an active <code>Successful_Login_Group</code> audit on it. The output audit file saves about 20000 rows in 10 minute. </p>
  
  <p>I just want to audit user login start time and session duration.</p>
  
  <p>I have usually 40 active session each time. </p>
  
  <p>What should I do?</p>
  
  <p>Thanks in advance</p>