"access to these databases is offered to the public or selected outside individuals, for a fee. a) data warehouses b) commercial databases c) company databases d) distributed databases": commercial databases 2."a collection of related fields such as a person's name, address, and age. a) character b) record c) field d) file": record 3."a data field that represents a description or characteristic of some entity. a) character b) attribute c) record d) entity": attribute 4."a field that uniquely identifies each record. a) id b) primary key c) common d) numeric": primary key Get the answer
Category: chemistry | Author: Valko Tomer