sqlserver 找到執(zhí)行慢的sql

SELECT
(total_elapsed_time / execution_count)/1000 N'平均時間ms'
,total_elapsed_time/1000 N'總花費(fèi)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(shù)'
,total_logical_reads/execution_count N'每次邏輯讀次數(shù)'
,total_logical_reads N'邏輯讀取總次數(shù)'
,total_logical_writes N'邏輯寫入總次數(shù)'
,execution_count N'執(zhí)行次數(shù)'
,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(zhí)行語句'
,st.text
,creation_time N'語句編譯時間'
,last_execution_time N'上次執(zhí)行時間'
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