查詢SQL執行效率的sql查詢語句分享

declare @sKssj varchar(23),
        @sJssj varchar(23)
set @sKssj='2019-05-31 01:35:00.000'
set @sJssj='2019-05-31 15:00:00.000'

SELECT
(total_elapsed_time / execution_count)/1000 N'平均時間ms'
,total_elapsed_time/1000 N'總花費時間ms'
,total_worker_time/1000 N'所用的CPU總時間ms'
,total_physical_reads N'物理讀取總次數'
,total_logical_reads/execution_count N'每次邏輯讀次數'
,total_logical_reads N'邏輯讀取總次數'
,total_logical_writes N'邏輯寫入總次數'
,execution_count N'執行次數'
,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'執行語句'
,creation_time N'語句編譯時間'
,last_execution_time N'上次執行時間'
FROM
sys.dm_exec_query_stats AS qs CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as 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%'
and creation_time between @sKssj and @sJssj
ORDER BY 
total_elapsed_time / execution_count DESC;