--查询数据库状态
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 dbname SET SINGLE_USER WITH
ROLLBACK IMMEDIATE
ALTER DATABASE dbname SET
ALLOW_SNAPSHOT_ISOLATION ON
ALTER DATABASE dbname SET
READ_COMMITTED_SNAPSHOT ON
ALTER DATABASE dbname SET
MULTI_USER
SQL Server开启READ_COMMITTED_SNAPSHOT,布布扣,bubuko.com
SQL Server开启READ_COMMITTED_SNAPSHOT
原文：http://www.cnblogs.com/yipu/p/3744031.html
