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Consider the employee work-team example, and assume that certain employees participate in more than one work team. A given employee may therefore appear in more than one of the team entity sets that are lower level entity sets of employee. Thus, the generalization is _____________

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Consider the employee work-team example, and assume that certain employees participate in more than one work team. A given employee may therefore appear in more than one of the team entity sets that are lower level entity sets of employee. Thus, the generalization is _____________

(a) Overlapping

(b) Disjointness

(c) Uniqueness

(d) Relational

This question was posed to me in an interview for internship.

This is a very interesting question from Extended E-R Features in portion Database Systems Design and Implementation of Database Management

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Right option is (a) Overlapping

Easiest explanation - In overlapping generalizations, the same entity may belong to more than one lower-level entity set within a single generalization.

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