There are those times that you need to backup all you MS SQL databases quickly. If you need to do it all at once here is a script that will help you accomplish that.

Step 1: Create the path specified in the path variable or choose your own

Step 2: Decide the Filename format. Here for a Database with the name DotNetNukeDemo the script will produce DotNetNukeDemo_20180513.BAK

Step 3: Decide which databases to exclude in the backup process

Step 4: Run the script

DECLARE @name VARCHAR(50) -- database name variable
DECLARE @path VARCHAR(256) -- path for backup files 
DECLARE @fileName VARCHAR(256) -- filename for backup  
DECLARE @fileDate VARCHAR(20) -- used for file name
 
-- specify database backup directory
SET @path = 'C:\Backup\'  
 
-- specify filename format
SELECT @fileDate = CONVERT(VARCHAR(20),GETDATE(),112) 
 
DECLARE db_cursor CURSOR READ_ONLY FOR  
SELECT name 
FROM master.dbo.sysdatabases 
WHERE name NOT IN ('master','model','msdb','tempdb')  -- exclude these databases
 
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