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如何在SQL Server中恢复数据

Jun 13, 2016 am 10:04 AM
b server sql several kinds Method exist recover data of

在SQL server 中恢复数据的几种办法:
1.自然就是 backup 的 恢复方法 backup 这种方法是最安全,最可靠的方法操作起来也很简单,只要在 sql server 的 enterprise manager中选择 restore 就可以了。
用T-SQL 也可以完成:
RESTORE DATABASE test FROM DISK = ’c:mssql7ackup est.bak’
当然这是用的 文件恢复,如果是 设备恢复 自然也是可以的。
2.可是有的时候,SQL server 是在我们毫无准备的情况下瘫痪的,有的时候是伴随者 NT 的瘫痪而引起的,(这个时候,豆腐想 墙上 Gates 的画像有仍了几个 西红柿),怎么办呢?这个时候就只有采用 sql server 的 t-sql 中提供的系统存储过程了:
sp_atach_db
在这里举一个简单的例子:
sp_attach_db @dbname = N’pubs’,
@filename1 = N’c:mssql7datapubs.mdf’,
@filename2 = N’c:mssql7datapubs_log.ldf’
这种方法应该说是有很高的成功率的,不过在 实践中 豆腐听说 这样后,数据库成为只读的,那也没有办法了。如果只有 mdf 没有 ldf 文件的话,可以使用 sp_attach_single_file
sp_attach_single_file_db @dbname = ’pubs’, @physname = ’c:mssql7datapubs.mdf’
这个方法本来是 用来 对 sp_deatach 的操作的反操作,不过直接使用也还是可以成功的。

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