SQL Server 监测语句

Posted 2020-11-19 wangwust

 

select top 20 
qs.creation_time, 
last_execution_time,
total_physical_reads,
total_logical_reads,
total_logical_writes,
DB_NAME(dbid) dbname,
execution_count,
--total_worker_time,
last_worker_time,
--substring(convert(char(23),DATEADD(ms,total_worker_time/1000,0),121),12,23) total_worker_time,
--total_elapsed_time,
last_elapsed_time,
substring(convert(char(23),DATEADD(ms,total_elapsed_time/1000,0),121),12,23) total_elapsed_time,
--total_elapsed_time / execution_count avg_elapsed_time,
substring(convert(char(23),DATEADD(ms,(total_elapsed_time / execution_count)/1000,0),121),12,23) avg_elapsed_time,
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) AS statement_text
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) st
--ORDER BY execution_count desc 计划执行总次数
--ORDER BY total_elapsed_time --计划执行总时长
order by last_worker_time desc;--最近一次执行cpu 占用时长