IWFWorkflowService svc = GetWorkflowService();
string sql = "SELECT * FROM WF_AUDIT_TRAILS where CATEGORY = 0 AND
PURPOSE='Check-in process definition'";
try
	{
    // calling the QueryDatabase webmethod and passing the sql query as the argument.
    string xml = svc.QueryDatabase(sql);
    Console.WriteLine("{0}", xml);// Displaying the XML string on console.
    System.IO.stringReader sr = new System.IO.stringBuilder(xml);
    System.Data.DataSet ds = new System.Data.DataSet();
    ds.LoadXml(sr);
	}
catch (Exception ex)
	{
    Console.WriteLine("Failed! " + ShUtil.GetSoapMessage(ex));
	}