http://www.dotblogs.com.tw/ricochen/archive/2012/07/10/73316.aspx
http://technet.microsoft.com/en-us/library/ms175519(v=sql.105).aspx
有用的查询或指令:
1.被block的sql
SELECT SPID=p.spid, DBName = convert(CHAR(20),d.name), ProgramName = program_name, LoginName = convert(CHAR(20),l.name), HostName = convert(CHAR(20),hostname), Status = p.status, BlockedBy = p.blocked, LoginTime = login_time, QUERY = CAST(TEXT AS VARCHAR(MAX)) FROM MASTER.dbo.sysprocesses p INNER JOIN MASTER.dbo.sysdatabases d ON p.dbid = d.dbid INNER JOIN MASTER.dbo.syslogins l ON p.sid = l.sid CROSS APPLY sys.dm_exec_sql_text(sql_handle) WHERE p.blocked = 0 AND EXISTS (SELECT 1 FROM MASTER..sysprocesses p1 WHERE p1.blocked = p.spid)
2.查找当前客户端和执行sql?
sp_who2
3.脏读:
select *from Table_1(nolock)
4.spid的信息查询
DBCC INPUTBUFFER(62)
5.表锁信息
sp_lock select * from sys.objects where object_id='802101898'