What Information Is Available from a Relational Database Containing One

question 21

Essay

What information is available from a relational database containing one relation with the attributes Name,Employee identification number,and Address that is not available from a database containing two relations,one with attributes Name and Address and the other with attributes Address and Employee identification number? Explain your answer.

---

Definitions:

Ocular Lens

The lens within the eye that focuses light on the retina, enabling clear vision by adjusting its shape.

Objective Lenses

The lenses closest to the specimen in a microscope, essential for magnifying the image of the sample being studied.

Condenser

A device used to condense gas into a liquid by cooling it.

Nosepiece

Part of a microscope or other optical instrument where the selection of lenses occurs, also known as a turret.