DBMS-Enhanced Entity-Relationship (EER) Model Questions and Answers

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The DBMS Enhanced Entity-Relationship (EER) Model questions with answers help students understand advanced database modeling techniques like specialization, generalization, and aggregation. These database programming questions and answers are important for placements and competitive exams where data modeling and schema design play a key role. Practicing EER model MCQs improves your conceptual understanding and helps you perform better in DBMS interviews and tests by TCS, IBM, and Infosys. Learn the extended concepts of ER modeling with clear explanations and real-world examples.

DBMS-Enhanced Entity-Relationship (EER) Model

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11. Generalisation maximizes the differences between the entities by identifying the common features .

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12. Total participation is also called an optional participation.

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13. The participation constraint can be total jor partial.

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14. The participation cosnstraint can be total or partial.

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15. A participation constraint can be total or partial

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16. A non-joint constraint is also called an overlapping constraint.

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17. A partial articipation is also called a mandatory participation.

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18. Disjoint constraint specifies the relationship between members of the subtypes and indites whether it is possible for a member of a supertype to be a member of one, or more than one, subtype.

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19. The disjoint constraint is only applied when a supertype has one subtype.

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20. A partial participation is represented using a single line between the supertype and the specialiasation/generalisation circle.

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