SQL SERVER死锁查询，死锁分析，解锁，查询占用

From:  https://www.cnblogs.com/K-R-/p/18431639

简单点的处理方法：

1、查询死锁的表

select request_session_id spid,OBJECT_NAME(resource_associated_entity_id) tableName
from sys.dm_tran_locks where resource_type='OBJECT'

2、解锁

declare @spid int
Set @spid = 79 --锁表进程
declare @sql varchar(1000)
set @sql='kill '+cast(@spid as varchar)
exec(@sql)

 

 

专业点的处理方法：

1.查询死锁的表：

SELECTrequest_session_id spid,OBJECT_NAME(resource_associated_entity_id) tableName
FROMsys.dm_tran_locks
WHEREresource_type = 'OBJECT'

2.分析被锁死的原因：

select t1.resource_type                                [资源锁定类型], DB_NAME(resource_database_id)                as 数据库名, t1.resource_associated_entity_id                锁定对象, t1.request_mode                              as 等待者请求的锁定模式, t1.request_session_id                           等待者SID, t2.wait_duration_ms                             等待时间, (select TEXTfrom sys.dm_exec_requests rcross applysys.dm_exec_sql_text(r.sql_handle)where r.session_id = t1.request_session_id) as 等待者要执行的SQL, t2.blocking_session_id                          [锁定者SID], (select TEXTfrom sys.sysprocesses pcross applysys.dm_exec_sql_text(p.sql_handle)where p.spid = t2.blocking_session_id
)                                                      锁定者执行语句
from sys.dm_tran_locks t1,sys.dm_os_waiting_tasks t2
where t1.lock_owner_address = t2.resource_address

3.解锁：

create Proc Sp_KillAllProcessInDB
@DbName VarChar(100)
as
if db_id(@DbName) = Null
begin
Print 'DataBase dose not Exist'
end
elseBegin
Declare @spId Varchar(30)DECLARE TmpCursor CURSOR FOR
Select 'Kill ' + convert(Varchar, spid) as spId
from master..SysProcesses
where db_Name(dbID) = @DbName
and spId <> @@SpId
and dbID <> 0
OPEN TmpCursorFETCH NEXT FROM TmpCursor
INTO @spIdWHILE @@FETCH_STATUS = 0BEGINExec (@spId)FETCH NEXT FROM TmpCursor
INTO @spIdENDCLOSE TmpCursor
DEALLOCATE TmpCursorend

4、查询SQL占用资源情况：

SELECT TOP 20total_worker_time/1000 AS [总消耗CPU 时间(ms)],execution_count [运行次数],qs.total_worker_time/qs.execution_count/1000 AS [平均消耗CPU 时间(ms)],last_execution_time AS [最后一次执行时间],max_worker_time /1000 AS [最大执行时间(ms)],SUBSTRING(qt.text,qs.statement_start_offset/2+1, (CASE WHEN qs.statement_end_offset = -1 THEN DATALENGTH(qt.text) ELSE qs.statement_end_offset END -qs.statement_start_offset)/2 + 1) AS [使用CPU的语法], qt.text [完整语法],dbname=db_name(qt.dbid),object_name(qt.objectid,qt.dbid) ObjectName
FROM sys.dm_exec_query_stats qs WITH(nolock)
CROSS apply sys.dm_exec_sql_text(qs.sql_handle) AS qt
WHERE execution_count>1
ORDER BY total_worker_time DESC