查看sql语句的执行时间及缓存执行计划
select total_elapsed_time / execution_count 平均时间,total_logical_reads/execution_count 逻辑读,
usecounts 重用次数,SUBSTRING(d.text, (statement_start_offset/2) + 1,
((CASE statement_end_offset
WHEN -1 THEN DATALENGTH(text)
ELSE statement_end_offset END
- statement_start_offset)/2) + 1) 语句执行 from sys.dm_exec_cached_plans a
cross apply sys.dm_exec_query_plan(a.plan_handle) c
,sys.dm_exec_query_stats b
cross apply sys.dm_exec_sql_text(b.sql_handle) d
where a.plan_handle=b.plan_handle and total_logical_reads/execution_count>4000
ORDER BY total_elapsed_time / execution_count DESC;
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