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BCA Semester 4 – Database Management System – Unit 3: Relational Database Model (4Hrs.)

Comprehensive questions and detailed answers for Unit 3: Relational Database Model (4Hrs.). Perfect for exam preparation and concept clarity.

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Define union compatibility. Given following relations, show the resulting relation of Director ∩ Actor and Actor ∪ Director?

Director

First NameLast Name
DeepakGiri
BhuwanKC
DipendraKhanel

Actor

First NameLast Name
DeepakGiri
RajeshHamal
DipendraKhanel
MediumTHEORY5 marks2021(TU FOHSS Final)

What is relational algebra? Explain different RA operations.

MediumTHEORY5 marks2023(TU FOHSS Final)

How candidate key is different from primary key? Also explain foreign key in detail.

MediumTHEORY5 marks2023(TU FOHSS Final)
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Define union compatibility. Given following relations, show the resulting relation of Director ∩ Actor and Actor ∪ Director? Director | First Name | Last Name | |------------|------------| | Deepak

Marks: 5Chapter: Unit 3: Relational Database Model (4Hrs.)

What is relational algebra? Explain different RA operations.

Marks: 5Chapter: Unit 3: Relational Database Model (4Hrs.)

How candidate key is different from primary key? Also explain foreign key in detail.

Marks: 5Chapter: Unit 3: Relational Database Model (4Hrs.)

Unit 3: Relational Database Model (4Hrs.) chapter questions with answers for Database Management System (BCA Semester 4). Prepare for TU exams with our comprehensive question bank and model answers.