SQL SERVER運維腳本系列：查找逻辑读取最高的查询

--查找逻辑读取最高的查询

SELECT TOP ( 25 )
        P.name AS [SP Name] ,
        Deps.total_logical_reads AS [TotalLogicalReads] ,
        deps.total_logical_reads / deps.execution_count AS [AvgLogicalReads] ,
        deps.execution_count ,
        ISNULL(deps.execution_count / DATEDIFF(Second, deps.cached_time,
                                               GETDATE()), 0) AS [Calls/Second] ,
        deps.total_elapsed_time ,
        deps.total_elapsed_time / deps.execution_count AS [avg_elapsed_time] ,
        deps.cached_time
FROM    sys.procedures AS p
        INNER JOIN sys.dm_exec_procedure_stats AS deps ON p.[Object_id] = deps.[Object_id]
WHERE   deps.Database_id = DB_ID()
ORDER BY deps.total_logical_reads DESC;

注：摘錄于《SQL server 性能優化及管理藝術》