BI SQL # 167 : SQL Server DBA Scripts : List all Locks of the Current Database
Hi Folks,
In this article we are going to cover How to List all Locks of the Current Database.
In this post we are going to discuss following points:
- Problem Statement of SQL Script:
- Description of SQL Script:
- SQL Script Output Column
- SQL Script Code
- User Level to execute
Problem Statement of SQL Script:
Find List of all Locks of the Current Database.
Description of SQL Script:
This Transact-SQL script list all locks with details currently existing in the selected database. With this script you can check exclusive locked object watching lock escalation during long running DML statements, e.g. from key to page to object lock watch what happens when you run a DBCC command like Index Defrag or Shrink Database which index is used to validate a (foreign key) constraint.
SQL Script Output Column
SQL Script Code
SELECT TL.resource_type AS ResType ,TL.resource_description AS ResDescr ,TL.request_mode AS ReqMode ,TL.request_type AS ReqType ,TL.request_status AS ReqStatus ,TL.request_owner_type AS ReqOwnerType ,TAT.[name] AS TransName ,TAT.transaction_begin_time AS TransBegin ,DATEDIFF(ss, TAT.transaction_begin_time, GETDATE()) AS TransDura ,ES.session_id AS S_Id ,ES.login_name AS LoginName ,COALESCE(OBJ.NAME, PAROBJ.NAME) AS ObjectName ,PARIDX.NAME AS IndexName ,ES.host_name AS HostName ,ES.program_name AS ProgramName FROM sys.dm_tran_locks AS TL INNER JOIN sys.dm_exec_sessions AS ES ON TL.request_session_id = ES .session_id LEFT JOIN sys.dm_tran_active_transactions AS TAT ON TL. request_owner_id = TAT.transaction_id AND TL.request_owner_type = 'TRANSACTION' LEFT JOIN sys.objects AS OBJ ON TL.resource_associated_entity_id = OBJ.object_id AND TL.resource_type = 'OBJECT' LEFT JOIN sys.partitions AS PAR ON TL. resource_associated_entity_id = PAR.hobt_id AND TL.resource_type IN ( 'PAGE' ,'KEY' ,'RID' ,'HOBT' ) LEFT JOIN sys.objects AS PAROBJ ON PAR.object_id = PAROBJ.object_id LEFT JOIN sys.indexes AS PARIDX ON PAR.object_id = PARIDX.object_id AND PAR.index_id = PARIDX.index_id WHERE TL.resource_database_id = DB_ID() AND ES.session_id <> @@Spid -- Exclude "my" session -- optional filter AND TL.request_mode <> 'S' -- Exclude simple shared locks ORDER BY TL.resource_type ,TL.request_mode ,TL.request_type ,TL.request_status ,ObjectName ,ES.login_name;
User Level to execute
200
Hope you will like How to List all Locks of the Current Database.
If you really like reading my blog and understood at least few thing then please don’t forget to subscribe my blog.
If you want daily link and analysis or interesting link go to following website which will give @ your inbox please subscribe our following link resource blog :
For More information related to BI World visit my Mentalist Blog
SQL Server Mentalist >> SQL Learning Blog
Business Intelligence Mentalist >> BI World
Infographic Mentalist >> Image worth explaining thousand Words
Microsoft Mentalist >> MVC,ASP.NET, WCF & LinQ
DBA Mentalist >>Advance SQL Server Blog
Microsoft BI Mentalist >> MS BI Development Update
Connect With me on
SQL Server Mentalist 