SQL SERVER 2008 同时执行select 和 update出现死锁解决方法

select name,user_access,user_access_desc,

snapshot_isolation_state,snapshot_isolation_state_desc,

is_read_committed_snapshot_on

from sys.databases

--设置数据库为SINGLE_USER模式,减少锁定时间

ALTER DATABASE school SET SINGLE_USER WITH ROLLBACK IMMEDIATE

ALTER DATABASE school SET ALLOW_SNAPSHOT_ISOLATION ON

ALTER DATABASE school SET READ_COMMITTED_SNAPSHOT ON

ALTER DATABASE school SET MULTI_USER