如何得到执行最耗时的前N条T-SQL语句

--语句源于 CSDN-叶子

 

--得到最耗时的前N条T-SQL语句

--适用于SQL SERVER 2005及其以上版本

 

--给N赋初值为

declare @n int set @n=30 ;

 

with maco as

(

select top (@n)

plan_handle,

sum(total_worker_time) as total_worker_time ,

sum(execution_count) as execution_count ,

count(1) as sql_count

from sys.dm_exec_query_stats group by plan_handle

order by sum(total_worker_time) desc

)

select t.text ,

a.total_worker_time ,

a.execution_count ,

a.sql_count

from maco a

cross apply sys.dm_exec_sql_text(plan_handle) t

 

/* 结果格式如下

Text，total_worker_time，execution_count，sql_count

*/