Często gęsto analizujemy jakiegoś locka. Dowiadujemy się jaki jest jego RID lub hash klucza: I zadajemy sobie teraz pytanie… OK, wiem która to baza, wiem który to obiekt. Ale skąd mam wiedzieć o jaki rekord może chodzić?? Z pomocą przychodzi wirtualna nieudokumentowana kolumna %%lockres%%, która zwraca właśnie powyższe wartości 🙂 Przykład:Czytaj dalej / Read more
Tag: locks
Alternatywa sp_lock – blokady na bazie
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-- List all Locks of the Current Database 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() -- 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; |