创建快照

create database Snapshot_LivePortal ON(

  --是源数据库的逻辑名
  Name = LivePortal,
  --快照文件地址
  FileName = 'E:\LivePortal_SnapShot.ss'
) 
AS SNAPSHOT OF LivePortal

查询快照数据库中的数据
use Snapshot_LivePortal

用快照恢复数据库
RESTORE DATABASE LivePortal from 
DATABASE_SNAPSHOT = 'Snapshot_LivePortal';

删除快照
DROP DATABASE Snapshot_LivePortal