backup

* t-sql

MSSQLtips tutorial

Change recovery model to full (need immediate backup if you do this).  Use same command to change back to simple or build-logged.

ALTER DATABASE AdventureWorks SET RECOVERY FULL
 GO

This is the backup command.  Issue it from SSMS or sqlcmd or powershell.

BACKUP DATABASE AdventureWorks
TO DISK = 'C:\AdventureWorks.BAK'
WITH DESCRIPTION = 'Full backup for AdventureWorks' -- this is optional, also works with log backup
GO
BACKUP LOG AdventureWorks 
TO DISK = 'C:\AdventureWorks.TRN'
GO

next command uses mirror and stats (every 1%, without number it is every 10%)

BACKUP DATABASE AdventureWorks 
TO DISK = 'C:\AdventureWorks.BAK'
WITH DESCRIPTION = 'Full backup for AdventureWorks' -- optional
MIRROR TO DISK =  'D:\AdventureWorks_mirror.BAK' -- optional
WITH FORMAT -- optional but probably recommended
WITH STATS = 1  -- optional, setting is every 1 percent
GO

* Sql server management studio – SSMS

MSSQLTips 

DPM