查询死锁进程和表 SELECT request_session_id AS spid , OBJECT_NAME(resource_associated_entity_id) AS 'table' FROM sys.dm_tran_locks WHERE resource_type = 'OBJECT'; 杀死进程 kill [SPID]
首先创建一个标量值函数DigLock,用来递归检测SqlServer中的每一个会话是否存在加锁循环,如果该函数最终返回1则表示检测到了加锁循环 (也就是说检测到了死锁),如果最终返回0则表示没有检测到加锁循环. CREATE FUNCTION [dbo].[DigLock] ( @spid int, @orginSpid int ) RETURNS bit AS BEGIN declare @blockedSpid int=null; and blocked=@spid if @blockedS
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[sp_who_lock]') and ) drop procedure [dbo].[sp_who_lock] GO use master go create procedure sp_who_lock as begin declare @spid int,@bl int, @intTransactionCountOnEntry int, @intRowco
--每秒死锁数量 SELECT * FROM sys.dm_os_performance_counters WHERE counter_name LIKE 'Number of Deadlocksc%'; --查询当前阻塞 WITH CTE_SID ( BSID, SID, sql_handle ) AS ( SELECT blocking_session_id , session_id , sql_handle FROM sys.dm_exec_requests WHERE blocking_
SET @sql = ' SET TRANSACTION ISOLATION LEVEL REPEATABLE READ; SET DEADLOCK_PRIORITY 10 BEGIN TRAN DECLARE @QuestionList TABLE(ID BIGINT,StudentCode NVARCHAR(50)) INSERT INTO @QuestionList(ID,StudentCode) SELECT TOP ))+' SS.ID,SS.StudentCode FROM ['+@
USE mastergo CREATE PROCEDURE [dbo].[sp_who_lock]AS BEGIN DECLARE @spid INT , @bl INT , @intTransactionCountOnEntry INT , @intRowcount INT , @intCountProperties INT , @intCounter INT C
在两个或多个SQL Server进程中,每一个进程锁定了其他进程试图锁定的资源,就会出现死锁,例如,进程process1对table1持有1个排它锁(X),同时process1对table2请求1个排它锁(X),进程process2对table2持有1个排它锁(X),同时process2对table1请求1个排它锁(X) 类似这种情况,就会出现死锁,除非当某个外部进程断开死锁,否则死锁中的两个事务都将无限期等待下去. Microsoft SQL Server 数据库引擎死锁监视器定期检查陷入死锁