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Wednesday, November 25, 2015

Simple script to backup all SQL Server databases

November 1, 2009 by · Leave a Comment 

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.

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 )
FROM master.dbo.sysdatabases
WHERE name NOT IN ( 'master' , 'model' , 'msdb' , 'tempdb' )
OPEN db_cursor
FETCH NEXT FROM db_cursor INTO @name
SET @fileName = @path + @name + '_' + @fileDate + '.BAK'
FETCH NEXT FROM db_cursor INTO @name
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.

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