Another example is: Table: CREATE TABLE [Countries] ( [CountryID] integer NOT NULL, [CountryLong] nvarchar(255) NULL, [CountryShort] nvarchar(3) NULL, CONSTRAINT [PK_CountryID] PRIMARY KEY( [CountryID] ASC) ) Using db As DBModel.DBEntities = New DBModel.POIDBEntities db.AddToCountries(New DBModel.Countries...