sql 备份数据库

从备份中还原 restore headeronly from bak1 restore database d1 from bak1 with file = 2 -- 从完全备份中恢复 restore headeronly from bak2 -- 从差异备份中恢复 restore database d2 from bak2 with file = 1 ,norecovery restore database d2 from bak2 with file = 5 ,recovery -- -------------------------------------------------------------------- restore headeronly from bak3 -- 从日志备份中恢复 restore database d3 from bak3 with file = 1 ,norecovery restore log d3 from bak3 with file = 2 ,norecovery restore log d3 from bak3 with file = 3 ,norecovery restore log d3 from bak3 with file = 4 ,norecovery restore log d3 from bak3 with file = 5 ,recovery -- -------------------------------------------------------------------- restore database d3 from bak3 with file = 1 ,norecovery -- 恢复到指定时间 restore log d3 from bak3 with file = 2 ,norecovery restore log d3 from bak3 with file = 3 ,norecovery restore log d3 from bak3 with file = 4 ,recovery,stopat = ' 2003-08-15 11:29:00.000 ' -- -------------------------------------------------------------------- restore database d5 filegroup = ' FG2 ' from bak5 with file = 4 ,norecovery -- 还原文件组备份 restore log d5 from bak5 with file = 5 ,norecovery restore log d5 from bak5 with file = 7 ,recovery -- -------------------------------------------------------------------- restore headeronly from bak6 -- 还原文件备份 restore database d5 file = ' d5_data3 ' from bak6 with file = 6 ,norecovery restore log d5 from bak6 with file = 7 ,norecovery restore log d5 from bak6 with file = 9 ,recovery -- -------------------------------------------------------------------- restore database d5 from bak6 with replace -- 删除现有数据库，从备份中重建数据库 -- -------------------------------------------------------------------- create database d6 -- move to将数据库文件移动到新位置 on primary (name = d6_data, filename = ' E:\Program Files\Microsoft SQL Server\MSSQL\data\d6_Data.MDF ' , size = 2MB) log on (name = d6_log, filename = ' E:\Program Files\Microsoft SQL Server\MSSQL\data\d6_log.ldf ' , size = 2MB) go backupdatabase d6 to bak6 with init drop database d6 restore database d6 from bak6 with move ' d6_data ' to ' e:\data\d6\d6_data.mdf ' , move ' d6_log ' to ' e:\data\d6\d6_log.ldf ' sp_helpdb d6 -- -------------------------------------------------------------------- 3 、分离与重连接数据库 -- ------------------------------------ sp_detach_db ' d6 ' sp_attach_db ' d6 ' , ' e:\data\d6\d6_data.mdf ' , ' e:\data\d6\d6_log.ldf ' -- ------------------------------------ sp_detach_db d6 go create database d6 on primary (filename = ' e:\data\d6\d6_data.mdf ' ) for attach go -- -------------------------------------------------------------------- 4 、恢复损坏的系统数据库 -- -------------------------------------------------------------------- 1 ）先备份MASTER、MSDB 2 ）停止SQL服务，将MASTER数据库文件删除或者重命名。这样，SQL服务将不能启动。 3 ）系统数据库的还原 -- --------------------------------------------- （ 1 ）如果SQL服务还能启动，则从备份中恢复系统数据库。 （ 2 ）如果SQL服务不能启动，则需要重建系统数据库。 使用SQL文件夹TOOLS\BINN目录下的Rebuildm.exe重建master数据库。 （ 3 ）创建备份设备，指向以前的备份设备。 （ 4 ）以单用户模式启动SQL cd programe files\microsoft sql server\mssql\binn sqlservr.exe - c - m （ 5 ）进查询分析器，从备份中恢复master数据库。 restore database master from masterbak restore database msdb from disk = ' e:\bak\msdb.bak ' MASTER还原后，SQL中用户数据库的信息也会恢复。 （ 6 ）如果MASTER没有备份，则需要用sp_attach_db命令将用户数据库附加到新的MASTER数据库中。