gvijaybabu - Wednesday, July 31, 2013 4:49 AM

Hi All, This is the query I have SELECT [Head Blocker SPID] = s.session_id, [Number of Statements Blocked] = count(r2.blocking_session_id), [Head Blocker SQL Statement] =(SELECT text AS [text()]FROM sys.dm_exec_sql_text(p.sql_handle)FOR XML PATH(''), TYPE), [Head Blocker Run Time (seconds)] = (datediff(second, s.last_request_start_time, getdate())), [Source Host Name] = ISNULL(s.host_name, N''), [Login Name] = s.login_name FROM sys.dm_exec_sessions s LEFT OUTER JOIN sys.dm_exec_connections c ON (s.session_id = c.session_id)LEFT OUTER JOIN sys.dm_exec_requests r ON (s.session_id = r.session_id)LEFT OUTER JOIN sys.dm_os_tasks t ON (r.session_id = t.session_id AND r.request_id = t.request_id)LEFT OUTER JOIN( SELECT *, ROW_NUMBER() OVER (PARTITION BY waiting_task_address ORDER BY wait_duration_ms DESC) AS row_numFROM sys.dm_os_waiting_tasks) w ON (t.task_address = w.waiting_task_address) AND w.row_num = 1LEFT OUTER JOIN sys.dm_exec_requests r2 ON (s.session_id = r2.blocking_session_id)LEFT OUTER JOIN sys.sysprocesses p ON (s.session_id = p.spid)WHERE r2.session_id IS NOT NULL AND (r.blocking_session_id = 0 OR r.session_id IS NULL) GROUP BY s.session_id,s.login_name,s.host_name,s.last_request_start_time,p.sql_handleCan somebody please help me with one thing.. in this query I am able to get all the spids that are "DIRECTLY" being blocked. But I need to tweak it in a way that this will give me all the spids which are directly or indirectly blocked for eg – If SPID is blocking SPIDs 56,74 and 56 is blocking 83,34 then the last column(No. of statements it is blocking directly or indirectly) should give ‘4’. Thanks in advance. VJ