偶看新闻幼儿儿歌歌词:Simple script to backup all SQL Server databa...
来源：百度文库 编辑：偶看新闻 时间：2024/04/30 08:38:54
Problem
Sometimes things that seem complicated are much easier then you think and this is the power of using T-SQL to take care of repetitive tasks. One of these tasks may be the need to backup all databases on your server. This is not a big deal if you have a handful of databases, but I have seen several servers where there are 100+ databases on the same instance of SQL Server. You could use Enterprise Manager to backup the databases or even use Maintenance Plans, but using T-SQL is a much simpler and faster approach.
Solution
With the use of T-SQL you can generate your backup commands and with the use of cursors you can cursor through all of your databases to back them up one by one. This is a very straight forward process and you only need a handful of commands to do this.
Here is the script that will allow you to backup each database within your instance of SQL Server. You will need to change the @path to the appropriate backup directory and each backup file will take on the name of "DBnameYYYDDMM.BAK".
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 In this script we are bypassing the system databases, but these could easily be included as well. You could also change this into a stored procedure and pass in a database name or if left NULL it backups all databases. Any way you choose to use it, this script gives you the starting point to simply backup all of your databases.
Next Steps
- Add this script to your toolbox
- Modify this script and make it a stored procedure to include one or many parameters
- Enhance the script to use additional BACKUP options
- Send your improved script to tips@mssqltips.com and we will post it on the site for others to use
- Script to find databases without transaction log backups
- Check for full database backups before generating any other types of backups
- How to identify when a database was restored, the source of the backup and the date of the backup
- How to Backup and Restore a SQL Server FILESTREAM Enabled Database
- Backup and Restore SQL Server databases programmatically with SMO
- More...