SQL SERVER使用事务日志恢复数据的实验

/*
使用事务日志恢复数据的实验
*/
--1.创建测试数据库
CREATE DATABASE Db_test
ON
( NAME = Db_test_DATA,
      FILENAME = 'c:\Db_test.mdf' )
LOG ON
( NAME = Db_test_LOG,
   FILENAME = 'c:\Db_test.ldf')
GO
--2.故障还原模型设置为full模型,默认的简单模型备份事务日志是没用的
ALTER   DATABASE   Db_test   SET   RECOVERY   FULL   |   BULK_LOGGED
--3.创建测试表
CREATE TABLE [dbo].[BackupTabToTxt] (
 [TabName] [varchar] (200)  ,
)
--4.插入测试数据
insert into BackupTabToTxt(TabName) values('test1')
insert into BackupTabToTxt(TabName) values('test2')
insert into BackupTabToTxt(TabName) values('test3')
select * from BackupTabToTxt
--5.备份数据库
BACKUP DATABASE Db_test TO DISK='c:\test_data.bak'
--6.删除数据,备份日志
delete from BackupTabToTxt where TabName='test3'  --17:06
BACKUP LOG Db_test TO DISK='c:\test_log_1706.bak' --备份日志
delete from BackupTabToTxt where TabName='test2'  --17:07
BACKUP LOG Db_test TO DISK='c:\test_log_1707.bak' --备份日志
select * from BackupTabToTxt
--7.使用事务日志恢复数据
RESTORE database Db_test from DISK='c:\test_data.bak'  WITH NORECOVERY
RESTORE LOG Db_test from DISK='c:\test_log_1706.bak' with stopat='2009-09-24 17:06' ,NORECOVERY
RESTORE LOG Db_test from DISK='c:\test_log_1707.bak' with stopat='2009-09-24 17:07'
select * from BackupTabToTxt
--8.删除测试库
drop database Db_test