http://sqlserver.ro/blogs/cristians_blog/archive/2008/01/14/it-has-been-3-years-and-it-finally-happened-correct-usage-of-sys-dm-exec-sessions-to-retrieve-user-sessions.aspxSince SQL Server 2005 in all the demos (even in Microsoft demos) involving sys.dm_exec_sessions DMV I saw this usage for retrieving user sessions: SELECT * FROM sys.dm_exec_sessions WHERE SPID > 50 This comes from SQL Server 2000 where you could selectenCommunityServer 2.1 SP2 (Build: 61129.1)