sys.dm_exec_query_stats 和sysprocesses表

足球不是方的 2017-06-07 02:59:05
下面的sql是提取top10 最耗时的
sqlselect top 10
DB_Name(qp.dbid) as dbname,
sum(qs.total_worker_time) as total_cpu_time,
sum(qs.execution_count) as total_execution_count,
count(*) as number_of_statements,
qt.text,
qs.sql_handle
from sys.dm_exec_query_stats qs
CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) as qp
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as qt
--WHERE last_execution_time between @dtBeginDate and @dtEndDate
group by qt.text, DB_Name(qp.dbid),qs.sql_handle
order by sum(qs.total_worker_time) desc

想加上执行对应sql的
loginame as [登录名],
login_time as [登录时间],
last_batch as [最后执行时间],
hostname as [客户端计算机名称],
program_name [应用程序名称],
先是这些字段在表 master.dbo.sysprocesses

现在怎么关联上去,根据sql_handle来貌似不行,求大哥来解决下。
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足球不是方的 2017-06-08
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大概明白了,看了下您的博客,问啥会监控sp命令? 我现在有做了阻塞,死锁,top10(cpu,io,内存)sql语句,作业执行状态,磁盘空间,数据库空间的监控。 请问还有说明内容需要监控的? 我现在还想监控2个数据 1、连接到数据库的程序(ip,客户端,登录名),想做一个白名单出来 2、想汇总一个登录名的状态(权限,状态,最后一次登录时间等信息) 以上2个有什么好的方法吗?
中国风 2017-06-07
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DBA-常用到的动态视图分析语句 http://blog.csdn.net/roy_88/article/details/42303869 sysprocesses 这是当前进程,你的语句去显示当前进程的信息,结果集是没有意义的 你应该查出对应的存储或语句,再执行优化处理,参照上面连接
中国风 2017-06-07
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有结果集时,再把你要显示的栏位加上
中国风 2017-06-07
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首先要进程里有对应的T-SQL才会显示,用以下方法试试 e.g.
SELECT TOP 10
        DB_NAME(qp.dbid) AS dbname ,
        SUM(qs.total_worker_time) AS total_cpu_time ,
        SUM(qs.execution_count) AS total_execution_count ,
        COUNT(*) AS number_of_statements ,
        qt.text ,
        qs.sql_handle
FROM    sys.dm_exec_query_stats qs
        CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp
        CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt
		INNER JOIN sys.dm_exec_requests AS rq ON rq.sql_handle=qs.sql_handle
		INNER JOIN master.sys.sysprocesses AS pc ON pc.spid=rq.session_id
 --WHERE  last_execution_time between @dtBeginDate and @dtEndDate
GROUP BY qt.text ,
        DB_NAME(qp.dbid) ,
        qs.sql_handle
ORDER BY SUM(qs.total_worker_time) DESC;
sql最全的常用命令语句 询某个数据库的连接数 select count(*) from Master.dbo.SysProcesses where dbid=db_id() --前10名其他等待类型 SELECT TOP 10 * from sys.dm_os_wait_stats ORDER BY wait_time_ms DESC SELECT *FROM sys.dm_os_wait_stats WHERE wait_type like 'PAGELATCH%' OR wait_type like 'LAZYWRITER_SLEEP%' --CPU的压力 SELECT scheduler_id, current_tasks_count, runnable_tasks_count FROM sys.dm_os_schedulers WHERE scheduler_id < 255 --现最差的前10名使用查询 SELECT TOP 10 ProcedureName = t.text, ExecutionCount = s.execution_count, AvgExecutionTime = isnull ( s.total_elapsed_time / s.execution_count, 0 ), AvgWorkerTime = s.total_worker_time / s.execution_count, TotalWorkerTime = s.total_worker_time, MaxLogicalReads = s.max_logical_reads, MaxPhysicalReads = s.max_physical_reads, MaxLogicalWrites = s.max_logical_writes, CreationDateTime = s.creation_time, CallsPerSecond = isnull ( s.execution_count / datediff ( second , s.creation_time, getdate ()), 0 ) FROM sys.dm_exec_query_stats s CROSS APPLY sys.dm_exec_sql_text( s.sql_handle ) t ORDER BY s.max_physical_reads DESC SELECT SUM(signal_wait_time_ms) AS total_signal_wait_time_ms总信号等待时间 , SUM(wait_time_ms - signal_wait_time_ms) AS resource_wait_time_ms资源的等待时间, SUM(signal_wait_time_ms) * 1.0 / SUM (wait_time_ms) * 100 AS [signal_wait_percent信号等待%], SUM(wait_time_ms - signal_wait_time_ms) * 1.0 / SUM (wait_time_ms) * 100 AS [resource_wait_percent资源等待%] FROM sys.dm_os_wait_stats --一个信号等待时间过多对资源的等待时间那么你的CPU是目前的一个瓶颈。 --查看进程所执行的SQL语句 if (select COUNT(*) from master.dbo.sysprocesses) > 500 begin select text,CROSS APPLY master.sys.dm_exec_sql_text(a.sql_handle) from master.sys.sysprocesses a end select text,a.* from master.sys.sysprocesses a CROSS APPLY master.sys.dm_exec_sql_text(a.sql_handle) where a.spid = '51' dbcc inputbuffer(53) with tb as ( select blocking_session_id, session_id,db_name(database_id) as dbname,text from master.sys.dm_exec_requests a CROSS APPLY master.sys.dm_exec_sql_text(a.sql_handle) ), tb1 as ( select a.*,login_time,program_name,client_interface_name,login_name,cpu_time,memory_usage*8 as 'memory_usage(KB)', total_scheduled_time,reads,writes,logical_reads from tb a inner join master.sys.dm_exec_sessions b on a.session_id=b.session_id ) select a.*,connect_time,client_tcp_port,client_net_address from tb1 a inner join master.sys.dm_exec_connections b on a.session_id=b.session_id --当前进程数 select * from master.dbo.sysprocesses order by cpu desc --查看当前活动的进程数 sp_who active --查询是否由于连接没有释放引起CPU过高 select * from master.dbo.sysprocesses where spid> 50 and waittype = 0x0000 and waittime = 0 and status = 'sleeping ' and last_batch < dateadd(minute, -10, getdate()) and login_time < dateadd(minute, -10, getdate()) --强行释放空连接 select 'kill ' + rtrim(spid) from master.dbo.sysprocesses where spid> 50 and waittype = 0x0000 and waittime = 0 and status = 'sleeping ' and last_batch < dateadd(minute, -60, getdate()) and login_time < dateadd(minute, -60, getdate()) --查看当前占用 cpu 资源最高的会话和其中执行的语句(及时CPU) select spid,cmd,cpu,physical_io,memusage, (select top 1 [text] from ::fn_get_sql(sql_handle)) sql_text from master..sysprocesses order by cpu desc,physical_io desc --查看缓存中重用次数少,占用内存大的查询语句(当前缓存中未释放的)--全局 SELECT TOP 100 usecounts, objtype, p.size_in_bytes,[sql].[text] FROM sys.dm_exec_cached_plans p OUTER APPLY sys.dm_exec_sql_text (p.plan_handle) sql ORDER BY usecounts,p.size_in_bytes desc SELECT top 25 qt.text,qs.plan_generation_num,qs.execution_count,dbid,objectid FROM sys.dm_exec_query_stats qs CROSS APPLY sys.dm_exec_sql_text(sql_handle) as qt WHERE plan_generation_num >1 ORDER BY qs.plan_generation_num SELECT top 50 qt.text AS SQL_text ,SUM(qs.total_worker_time) AS total_cpu_time, SUM(qs.execution_count) AS total_execution_count, SUM(qs.total_worker_time)/SUM(qs.execution_count) AS avg_cpu_time, COUNT(*) AS number_of_statements FROM sys.dm_exec_query_stats qs CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as qt GROUP BY qt.text ORDER BY total_cpu_time DESC --统计总的CPU时间 --ORDER BY avg_cpu_time DESC --统计平均单次查询CPU时间 -- 计算可运行状态下的工作进程数量 SELECT COUNT(*) as workers_waiting_for_cpu,s.scheduler_id FROM sys.dm_os_workers AS o INNER JOIN sys.dm_os_schedulers AS s ON o.scheduler_address=s.scheduler_address AND s.scheduler_id<255 WHERE o.state='RUNNABLE' GROUP BY s.scheduler_id

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