List Real-Time Blocker and Waiter Statements

Description

Sample script that lists real-time blocker and waiter SQL statements. This script requires Microsoft SQL Server 2005.

Script Code

select t1.resource_type
	,db_name(resource_database_id) as [database]
	,t1.resource_associated_entity_id as [blk object]
	,t1.request_mode
	,t1.request_session_id   -- spid of waiter
	,(select text from sys.dm_exec_requests as r  --- get sql for waiter
		cross apply sys.dm_exec_sql_text(r.sql_handle) where r.session_id = t1.request_session_id) as waiter_text
	,t2.blocking_session_id  -- spid of blocker
     ,(select text from sys.sysprocesses as p		--- get sql for blocker
		cross apply sys.dm_exec_sql_text(p.sql_handle) where p.spid = t2.blocking_session_id) as blocker_text
	from 
	sys.dm_tran_locks as t1, 
	sys.dm_os_waiting_tasks as t2
where 
	t1.lock_owner_address = t2.resource_address
go

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Disclaimer

The sample scripts are not supported under any Microsoft standard support program or service. The sample scripts are provided AS IS without warranty of any kind. Microsoft further disclaims all implied warranties including, without limitation, any implied warranties of merchantability or of fitness for a particular purpose. The entire risk arising out of the use or performance of the sample scripts and documentation remains with you. In no event shall Microsoft, its authors, or anyone else involved in the creation, production, or delivery of the scripts be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss) arising out of the use of or inability to use the sample scripts or documentation, even if Microsoft has been advised of the possibility of such damages.


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