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[導(dǎo)讀]bb--?List?expensive?queries? ?DECLARE?@MinExecutions?int;? ?SET?@MinExecutions?=?5? ?? ?SELECT?EQS.t

bb

--?List?expensive?queries?
?DECLARE?@MinExecutions?int;?
?SET?@MinExecutions?=?5?
??
?SELECT?EQS.total_worker_time?AS?TotalWorkerTime?
???????,EQS.total_logical_reads?+?EQS.total_logical_writes?AS?TotalLogicalIO?
???????,EQS.execution_count?As?ExeCnt?
???????,EQS.last_execution_time?AS?LastUsage?
???????,EQS.total_worker_time?/?EQS.execution_count?as?AvgCPUTimeMiS?
???????,(EQS.total_logical_reads?+?EQS.total_logical_writes)?/?EQS.execution_count??
????????AS?AvgLogicalIO?
???????,DB.name?AS?DatabaseName?
???????,SUBSTRING(EST.text?
?????????????????,1?+?EQS.statement_start_offset?/?2?
?????????????????,(CASE?WHEN?EQS.statement_end_offset?=?-1??
????????????????????????THEN?LEN(convert(nvarchar(max),?EST.text))?*?2??
????????????????????????ELSE?EQS.statement_end_offset?END??
??????????????????-?EQS.statement_start_offset)?/?2?
?????????????????)?AS?SqlStatement?
???????--?Optional?with?Query?plan;?remove?comment?to?show,?but?then?the?query?takes?!!much?longer?time!!?
???????--,EQP.[query_plan]?AS?[QueryPlan]?
?FROM?sys.dm_exec_query_stats?AS?EQS?
??????CROSS?APPLY?sys.dm_exec_sql_text(EQS.sql_handle)?AS?EST?
??????CROSS?APPLY?sys.dm_exec_query_plan(EQS.plan_handle)?AS?EQP?
??????LEFT?JOIN?sys.databases?AS?DB?
??????????ON?EST.dbid?=?DB.database_id??????
?WHERE?EQS.execution_count?>?@MinExecutions?
???????AND?EQS.last_execution_time?>?DATEDIFF(MONTH,?-1,?GETDATE())?
?ORDER?BY?AvgLogicalIo?DESC?
?????????,AvgCPUTimeMiS?DESC


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