SQLServer找出执行慢的SQL语句

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,((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;

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