Theenumeration contains values that are used to specify the backup type.
Assembly: Microsoft.SqlServer.SqlEnum (in Microsoft.SqlServer.SqlEnum.dll)
A full database backup set.
A differential backup set.
A file or file group backup set.
A file or filegroup differential backup set.
A differential backup set. MSSQL doesn't support incremental backup (present here just for backward compatibility.)
A transaction log backup set.