關係型資料庫（22）
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x備份
與恢復1. 備份策略
2. 作業系統級備份：
讓資料庫
離線use master
goalter database [mysqlserver]
set offline
go讓資料庫聯機
use master
goalter database [mysqlserver]
set online
go3. 資料庫全備份
backup database [mysqlserver]
to disk = n'c:program filesmicrosoftsql
servermssql.1mssqlbackupmysqlserver.bak'
with description = n'2008-03-11',
noformat, init,
name = n'mysqlserver-full database backup',
skip, norewind, nounload, stats = 10
godeclare @backupsetid as int
select @backupsetid = position
from msdb..backupset
where database_name=n'mysqlserver'
and backup_set_id=
(select max(backup_set_id) from msdb..backupset where database_name=n'mysqlserver' )
if @backupsetid is null
begin
raiserror(n'verify failed. backup information for database ''mysqlserver'' not found.', 16, 1)
endrestore verifyonly
from disk = n'c:program filesmicrosoft sql servermssql.1mssqlbackupmysqlserver.bak'
with file = @backupsetid, nounload, norewind
go4. 資料庫增量備份
backup database [mysqlserver]
to disk = n'c:program filesmicrosoft sql servermssql.1mssqlbackupmysqlserver.bak'
with differential , noformat, noinit,
name = n'mysqlserver-differential database backup',
skip, norewind, nounload, stats = 10
godeclare @backupsetid as int
select @backupsetid = position from msdb..backupset where database_name=n'mysqlserver' and backup_set_id=(select max(backup_set_id) from msdb..backupset where database_name=n'mysqlserver' )
if @backupsetid is null begin raiserror(n'verify failed. backup information for database ''mysqlserver'' not found.', 16, 1) end
restore verifyonly from disk = n'c:program filesmicrosoft sql servermssql.1mssqlbackupmysqlserver.bak' with file = @backupsetid, nounload, norewind
go5. 事務日誌備份
backup log [mysqlserver]
to disk = n'c:program filesmicrosoft sql servermssql.1mssqlbackupmysqlserver.bak'
with noformat, noinit, name = n'mysqlserver-transaction log backup',
skip, norewind, nounload, stats = 10
go6. 資料庫恢復：
restore database [mysqlserver]
from disk = n'c:program filesmicrosoft sql servermssql.1mssqlbackupmysqlserver.bak'
with file = 6, nounload, stats = 10
gorestore database [mysqlserver]
from disk = n'c:program filesmicrosoft sql servermssql.1mssqlbackupmysqlserver.bak'
with restricted_user, file = 6,
move n'mysqlserver_pri01' to n'e:mysql_pri01.mdf',
move n'mysqlserver_log' to n'e:mysql2_log.ldf',
move n'mysqlserver_sec01' to n'e:mysql2_sec01.ndf',
move n'mysqlserver_sec02' to n'e:mysql2_sec02.ndf',
keep_replication, nounload, replace, stats = 10
go7. 分離與附加
例：資料庫分離：
use [master]
goexec master.dbo.sp_detach_db @dbname = n'mysqlserver', @keepfulltextindexfile=n'true'
go例：資料庫附加：
create database mysqlserver2
on ( filename = 'c:program filesmicrosoft sql servermssqldatamysqlserver2.mdf' )
for attach
go
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