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The Rectangles divided into two parts represents

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The Rectangles divided into two parts represents

(a) Entity set

(b) Relationship set

(c) Attributes of a relationship set

(d) Primary key

The question was posed to me in an interview for job.

The above asked question is from Entity-Relationship Diagrams topic in section Database Systems Design and Implementation of Database Management

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The correct option is (a) Entity set

To explain: The first part of the rectangle, contains the name of the entity set. The second part contains the names of all the attributes of the entity set.

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