找出SQL Server中执行慢的语句

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,
(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;