在查看阻塞和死锁进程之前先了解一点相关知识
sp_who
也可以指定登录名来查看一些信息(进程ID、主机名、数据库等)
sp_who sa
sp_who2
也可以指定具体的进程号查看,如查看161进程号的一些情况(登录名、数据库、CPU时间、磁盘IO次数等)
sp_who2 161结果如下:
SPID Status Login HostName BlkBy DBName Command CPUTime DiskIO LastBatch ProgramName SPID REQUESTID
161 sleeping starishop TONY . TEST AWAITING COMMAND 2189 65 12/03 9:47:56: issLabelPrint 161 0SELECT @@CONNECTIONS --查看数据库自上次启动以来的连接次数
SELECT @@MAX_CONNECTIONS --查看数据库的最大连接数SELECT * FROM master..sysprocesses WHERE dbid IN (SELECT dbid FROM master..sysdatabases WHERE name='TEST') --查看TEST数据库的连接进程情况
sp_who_lock存储过程,存储显示阻塞,死锁的情况:
CREATE procedure sp_who_lock
as
begin
declare @spid int
declare @blk int
declare @count int
declare @index int
declare @lock tinyint
set @lock=0
create table #temp_who_lock
(
id int identity(1,1),
spid int,
blk int
)
if @@error<>0 return @@error
insert into #temp_who_lock(spid,blk)
select 0 ,blocked
from (select * from master..sysprocesses where blocked>0)a
where not exists(select * from master..sysprocesses where a.blocked =spid and blocked>0)
union select spid,blocked from master..sysprocesses where blocked>0
if @@error<>0 return @@error
select @count=count(*),@index=1 from #temp_who_lock
if @@error<>0 return @@error
if @count=0
begin
select '没有阻塞和死锁信息'
return 0
end
while @index<=@count
begin
if exists(select 1 from #temp_who_lock a where id>@index and exists(select 1 from #temp_who_lock where id<=@index and a.blk=spid))
begin
set @lock=1
select @spid=spid,@blk=blk from #temp_who_lock where id=@index
select '引起数据库死锁的是: '+ CAST(@spid AS VARCHAR(10)) + '进程号,其执行的SQL语法如下'
select @spid, @blk
dbcc inputbuffer(@spid)
dbcc inputbuffer(@blk)
end
set @index=@index+1
end
if @lock=0
begin
set @index=1
while @index<=@count
begin
select @spid=spid,@blk=blk from #temp_who_lock where id=@index
if @spid=0
select '引起阻塞的是:'+cast(@blk 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(@blk AS VARCHAR(10)) +'阻塞,其当前进程执行的SQL语法如下'
dbcc inputbuffer(@spid)
dbcc inputbuffer(@blk)
set @index=@index+1
end
end
drop table #temp_who_lock
return 0
end
结束进程
kill spid