可以通过查找引起死锁的的操作,就可以方便的解决死锁,现将日常解决问题的方法总结,也许对大家有帮助
1\死锁发生时,通过如下语法,查询出引起死锁的操作
use master
go
declare @spid int,@bl int
DECLARE s_cur CURSOR FOR
select 0 ,blocked
from (select * from sysprocesses where blocked>0 ) a
where not exists(select * from (select * from sysprocesses where blocked>0 ) b
where a.blocked=spid)
union select spid,blocked from sysprocesses where blocked>0
OPEN s_cur
FETCH NEXT FROM s_cur INTO @spid,@bl
WHILE @@FETCH_STATUS = 0
begin
if @spid =0
select '引起数据库死锁的是: '+ CAST(@bl AS VARCHAR(10)) + '进程号,其执行的SQL语法如下'
else
select '进程号SPID:'+ CAST(@spid AS VARCHAR(10))+ '被' + '进程号SPID:'+ CAST(@bl AS VARCHAR(10)) +'阻塞,其当前进程执行的SQL语法如下'
DBCC INPUTBUFFER (@bl )
FETCH NEXT FROM s_cur INTO @spid,@bl
end
CLOSE s_cur
DEALLOCATE s_cur
exec sp_who2
2\查找程序/数据库,此t_sql语法在什么地方使用
3\分析找到的,并解决问题
EG:
/*
-------------------------------------------------------
引起数据库死锁的是: 71进程号,其执行的SQL语法如下
EventType Parameters EventInfo
-------------- ---------- ------------------------------------------------
Language Event 0
select * from test
insert test values(1,2)
(所影响的行数为 1 行)
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