--1)查询被阻塞和正在阻塞的查询: SELECT R.session_id AS BlockedSessionID , S.session_id AS BlockingSessionID , Q1.text AS BlockedSession_TSQL , Q2.text AS BlockingSession_TSQL , C1.most_recent_sql_handle AS BlockedSession_SQLHandle , C2.most_recent_sql_handle AS BlockingSession_SQLHandle , S.original_login_name AS BlockingSession_LoginName , S.program_name AS BlockingSession_ApplicationName , S.host_name AS BlockingSession_HostName FROM sys.dm_exec_requests AS R INNER JOIN sys.dm_exec_sessions AS S ON R.blocking_session_id = S.session_id INNER JOIN sys.dm_exec_connections AS C1 ON R.session_id = C1.most_recent_session_id INNER JOIN sys.dm_exec_connections AS C2 ON S.session_id = C2.most_recent_session_id CROSS APPLY sys.dm_exec_sql_text(C1.most_recent_sql_handle) AS Q1 CROSS APPLY sys.dm_exec_sql_text(C2.most_recent_sql_handle) AS Q2
第十六章——处理锁、阻塞和死锁(2)——侦测阻塞和阻塞查询
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