IT俱乐部 MsSql Sql Server中通过sql命令获取cpu占用及产生锁的sql

Sql Server中通过sql命令获取cpu占用及产生锁的sql

获取SQLSERVER中产生锁的SQL语句

SELECT 
    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) as st where qs.sql_handle in (select distinct sql_handle from sys.dm_exec_requests where session_id in (SELECT request_session_id as Spid
FROM sys.dm_tran_locks l
LEFT JOIN sys.partitions p
ON l.resource_associated_entity_id = p.hobt_id
LEFT JOIN sys.indexes i
ON p.object_id = i.object_id
AND p.index_id = i.index_id
LEFT JOIN sys.objects o
ON p.object_id = o.object_id
LEFT JOIN sys.schemas s
ON o.schema_id = s.schema_id
LEFT JOIN sys.objects o2
ON l.resource_associated_entity_id = o2.object_id
LEFT JOIN sys.schemas s2
ON o2.schema_id = s2.schema_id
LEFT JOIN sys.databases db
ON l.resource_database_id = db.database_id
WHERE resource_database_id = DB_ID() and request_mode in ('X')
))

查询 某个时间点的,所有执行中的sql语句的CPU占用时间(倒排序)

use master;SELECT [session_id], [cpu_time], [start_time], dest. AS 'sql',  DB_NAME([database_id]) AS 'dbname', [row_count] FROM sys.[dm_exec_requests] AS der CROSS APPLY sys.[dm_exec_sql_text](der.[sql_handle]) AS dest WHERE [session_id]>50 ORDER BY [cpu_time] DESC

查询 不同sql语句产生阻塞的情况(主要是由于锁产生的等待)

use master;SELECT top 50 dest. AS 'sql', wtt.blocking_session_id, wtt.wait_duration_ms, wtt.session_id FROM sys.dm_os_waiting_tasks wtt LEFT JOIN sys.dm_exec_requests req ON wtt.blocking_session_id = req.session_id CROSS APPLY sys.[dm_exec_sql_text](req.[sql_handle]) AS dest where wtt.blocking_session_id is not null and wtt.wait_duration_ms>2000 order by wait_duration_ms desc

到此这篇关于Sql Server中通过sql命令获取cpu占用及产生锁的sql的文章就介绍到这了,更多相关cpu占用及产生锁内容请搜索IT俱乐部以前的文章或继续浏览下面的相关文章希望大家以后多多支持IT俱乐部!

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