SELECT request_session_id, COUNT (*) num_locks FROM sys.dm_tran_locks GROUP BY request_session_id ORDER BY count (*) DESC...(<a href="http://sqlserver-qa.net/blogs/t-sql/archive/2007/07/31/1196.aspx">read more</a>)<img src="http://sqlserver-qa.net/aggbug.aspx?PostID=1196" width="1" height="1">