sql - SQL Server：备份所有数据库

Question

我想知道是否有任何方法可以定期将整个 SQL Server（我们使用 SQL Server 2008）备份到特定位置。我知道我们可以备份单个特定的数据库，但是为了便于使用，并且每次我想要一个新数据库时都不必设置备份，有没有办法做到这一点？

但是，如果有的话，我必须有一种方法可以轻松地从该服务器备份中恢复单个数据库，就好像我已经单独备份了它们一样。

使用的方法只是一个纯粹的备份，没有区别，所以不必担心并发症。

Answer 1

您可以运行以下脚本，只需将 @path 变量更改为您要存储数据库的位置。

DECLARE @name VARCHAR(50) -- database name  
DECLARE @path VARCHAR(256) -- path for backup files  
DECLARE @fileName VARCHAR(256) -- filename for backup  
DECLARE @fileDate VARCHAR(20) -- used for file name 

SET @path = 'C:\Backup\'  

SELECT @fileDate = CONVERT(VARCHAR(20),GETDATE(),112) 

DECLARE db_cursor CURSOR FOR  
SELECT name 
FROM master.dbo.sysdatabases 
WHERE name NOT IN ('master','model','msdb','tempdb')  

OPEN db_cursor   
FETCH NEXT FROM db_cursor INTO @name   

WHILE @@FETCH_STATUS = 0   
BEGIN   
       SET @fileName = @path + @name + '_' + @fileDate + '.BAK'  
       BACKUP DATABASE @name TO DISK = @fileName  

       FETCH NEXT FROM db_cursor INTO @name   
END   

CLOSE db_cursor   
DEALLOCATE db_cursor

从...获取：

http://www.mssqltips.com/sqlservertip/1070/simple-script-to-backup-all-sql-server-databases/

Answer 2

考虑备份隐藏的资源数据库

Use master
GO

--enable
sp_configure 'show advanced options'
GO
/* 0 = Disabled , 1 = Enabled */
sp_configure 'xp_cmdshell', 1
GO
RECONFIGURE WITH OVERRIDE
GO


--===Resource file details
SELECT 'ResourceDB' AS 'Database Name'
    , NAME AS [Database File]
    , FILENAME AS [Database File Location] 
FROM sys.sysaltfiles 
    WHERE DBID = 32767
ORDER BY [Database File]
GO

--===Copy resource files
DECLARE @ResDataFile VARCHAR(1000), @ResLogFile VARCHAR(1000)
SELECT 
    @ResDataFile = CASE NAME WHEN  'Data' THEN FILENAME ELSE @ResDataFile END,
    @ResLogFile = CASE NAME WHEN 'Log' THEN FILENAME ELSE @ResLogFile END
FROM sys.sysaltfiles 
WHERE DBID = 32767

SELECT @ResDataFile, @ResLogFile

DECLARE @cmd VARCHAR(1000)

--===Copy data file
SELECT @cmd = 'COPY /Y "' + @ResDataFile + '" "G:\SQLBackups"'
--PRINT @cmd
EXEC xp_cmdshell @cmd

--===Copy log file
SELECT @cmd = 'COPY /Y "' + @ResLogFile + '" "G:\SQLBackups"'
--PRINT @cmd
EXEC xp_cmdshell @cmd

GO
--Disable
sp_configure 'show advanced options'
GO
/* 0 = Disabled , 1 = Enabled */
sp_configure 'xp_cmdshell', 0
GO
RECONFIGURE WITH OVERRIDE
GO