本篇內(nèi)容介紹了“SqlServer備份和恢復的方法”的有關知識,在實際案例的操作過程中,不少人都會遇到這樣的困境,接下來就讓小編帶領大家學習一下如何處理這些情況吧!希望大家仔細閱讀,能夠?qū)W有所成!
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SqlServer備份和恢復
備份
---創(chuàng)建測試數(shù)據(jù)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(chuàng)建測試數(shù)據(jù)
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(shù)據(jù)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(shù)據(jù)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(shù)據(jù)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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