SqlServer備份和恢復的方法

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SqlServer備份和恢復

備份

---創建測試數據庫chen20181123

create database chen20181123

on

(name=chen_data,

filename='D:\hrtest\DB\testdata\chen20181123_data.mdf',

size=10MB,

filegrowth=1MB)

log on

(name=chen_log,

filename='D:\hrtest\DB\testdata\chen20181123_log.ldf',

size=1MB,

filegrowth=10MB);

---創建測試數據

use chen20181123

create table t1(id int,a varchar(100));

insert into t1 values(1,'a');

insert into t1 values(2,'b');

insert into t1 values(3,'c');

---數據庫全備

BACKUP DATABASE chen20181123

TO DISK='D:\hrtest\DB\testdata\backup\chen20181123_full.bak'  WITH COMPRESSION

GO

insert into t1 values(4,'d');

insert into t1 values(5,'e');

---數據庫差異備份

BACKUP DATABASE chen20181123

TO DISK='D:\hrtest\DB\testdata\backup\chen20181123_1.bak'  WITH COMPRESSION,DIFFERENTIAL;

GO

insert into t1 values(7,'f');

insert into t1 values(8,'g');

---數據庫日志備份

BACKUP LOG chen20181123 TO DISK='D:\hrtest\DB\testdata\backup\chen20181123_2.trn' WITH COMPRESSION;

insert into t1 values(9,'f');

insert into t1 values(10,'g');

---19:51

delete t1;

恢復場景

---恢復全備+差異備份 恢復

restore filelistonly from disk='D:\hrtest\DB\testdata\backup\chen20181123_full.bak';

RESTORE DATABASE chen20181123_1

  FROM DISK = 'D:\hrtest\DB\testdata\backup\chen20181123_full.bak'

  WITH NORECOVERY,

  MOVE 'chen_data' TO 'D:\hrtest\DB\testdata\chen20181123_1_data.mdf',  

  MOVE 'chen_log' TO 'D:\hrtest\DB\testdata\chen20181123_1_log.ldf';

RESTORE DATABASE chen20181123_1 from disk='D:\hrtest\DB\testdata\backup\chen20181123_1.bak'

  WITH RECOVERY;

select * from chen20181123_1.dbo.t1;  ---5

---恢復全備+差異備份+日志備份 恢復

USE MASTER

---drop database chen20181123_2;

RESTORE DATABASE chen20181123_2

  FROM DISK = 'D:\hrtest\DB\testdata\backup\chen20181123_full.bak'

  WITH NORECOVERY,

  MOVE 'chen_data' TO 'D:\hrtest\DB\testdata\chen20181123_2_data.mdf',  

  MOVE 'chen_log' TO 'D:\hrtest\DB\testdata\chen20181123_2_log.ldf';

RESTORE DATABASE chen20181123_2 from disk='D:\hrtest\DB\testdata\backup\chen20181123_1.bak'

  WITH NORECOVERY;

RESTORE LOG chen20181123_2 from disk='D:\hrtest\DB\testdata\backup\chen20181123_2.trn'

  WITH RECOVERY;

select * from chen20181123_2.dbo.t1;  ---7

---20:33

BACKUP LOG chen20181123 TO DISK='D:\hrtest\DB\testdata\backup\chen20181123_3.trn' WITH COMPRESSION;

---恢復全備+差異備份+日志備份+新日志備份 恢復

USE MASTER

RESTORE DATABASE chen20181123_3

  FROM DISK = 'D:\hrtest\DB\testdata\backup\chen20181123_full.bak'

  WITH NORECOVERY,

  MOVE 'chen_data' TO 'D:\hrtest\DB\testdata\chen20181123_3_data.mdf',  

  MOVE 'chen_log' TO 'D:\hrtest\DB\testdata\chen20181123_3_log.ldf';

RESTORE DATABASE chen20181123_3 from disk='D:\hrtest\DB\testdata\backup\chen20181123_1.bak'

  WITH NORECOVERY;

RESTORE LOG chen20181123_3 from disk='D:\hrtest\DB\testdata\backup\chen20181123_2.trn'

  WITH NORECOVERY;

RESTORE LOG chen20181123_3 from disk='D:\hrtest\DB\testdata\backup\chen20181123_3.trn'

  WITH RECOVERY;

select * from chen20181123_3.dbo.t1;  ---0

---恢復全備+差異備份+日志備份+新日志備份+基于時間點不完全恢復

USE MASTER

---drop database chen20181123_5;

RESTORE DATABASE chen20181123_5

  FROM DISK = 'D:\hrtest\DB\testdata\backup\chen20181123_full.bak'

  WITH NORECOVERY,

  MOVE 'chen_data' TO 'D:\hrtest\DB\testdata\chen20181123_5_data.mdf',  

  MOVE 'chen_log' TO 'D:\hrtest\DB\testdata\chen20181123_5_log.ldf';

RESTORE DATABASE chen20181123_5 from disk='D:\hrtest\DB\testdata\backup\chen20181123_1.bak'

  WITH NORECOVERY;

RESTORE LOG chen20181123_5 from disk='D:\hrtest\DB\testdata\backup\chen20181123_2.trn'

  WITH NORECOVERY;

RESTORE LOG chen20181123_5 from disk='D:\hrtest\DB\testdata\backup\chen20181123_3.trn'

  WITH RECOVERY,STOPAT='2018-11-23 19:50:00';

select * from chen20181123_5.dbo.t1;  ---9

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