mssql查询过去一段时间数据库中执行过的语句及执行效率

    SELECT TOP 1000
           ST.text AS '执行的SQL语句',
           QS.execution_count AS '执行次数',
           QS.total_elapsed_time AS '耗时',
           QS.total_logical_reads AS '逻辑读取次数',
           QS.total_logical_writes AS '逻辑写入次数',
           QS.total_physical_reads AS '物理读取次数',
           QS.creation_time AS '执行时间' ,
           QS.*
    FROM   sys.dm_exec_query_stats QS
           CROSS APPLY
    sys.dm_exec_sql_text(QS.sql_handle) ST
    WHERE  QS.creation_time BETWEEN '2017-8-23 00:00:00' AND '2017-8-24 00:00:00'
    ORDER BY
         QS.total_elapsed_time DESC