查询执行时间

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SELECT  ( total_elapsed_time / execution_count ) / 1000 N'平均时间ms' ,
        total_elapsed_time / 1000 N'总花费时间ms' ,
        total_worker_time / 1000 N'所用的CPU总时间ms' ,
        total_physical_reads N'物理读取总次数' ,
        total_logical_reads / execution_count N'每次逻辑读次数' ,
        total_logical_reads N'逻辑读取总次数' ,
        total_logical_writes N'逻辑写入总次数' ,
        execution_count N'执行次数' ,
        SUBSTRING(st.text, ( qs.statement_start_offset / 2 ) + 1,
                  ( ( CASE statement_end_offset
                        WHEN -1 THEN DATALENGTH(st.text)
                        ELSE qs.statement_end_offset
                      END - qs.statement_start_offset ) / 2 ) + 1) N'执行语句' ,
        creation_time N'语句编译时间' ,
        last_execution_time N'上次执行时间'
FROM    sys.dm_exec_query_stats AS qs
        CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) st
WHERE   SUBSTRING(st.text, ( qs.statement_start_offset / 2 ) + 1,
                  ( ( CASE statement_end_offset
                        WHEN -1 THEN DATALENGTH(st.text)
                        ELSE qs.statement_end_offset
                      END - qs.statement_start_offset ) / 2 ) + 1) NOT LIKE '%fetch%'
ORDER BY total_elapsed_time / execution_count DESC;