SQL Server/T-SQL Tutorial/Database/BACKUP

Backup a database with DIFFERENTIAL

BACKUP DATABASE NWCopy
TO NWCopyBK_1
WITH DIFFERENTIAL
GO

Backup a database with init

BACKUP DATABASE NWCopy
TO NWCopyBK_1
WITH INIT
GO

BACKUP DATABASE

5> BACKUP DATABASE pubs to disk =
6>     "c:\pubs.bak"