DBMS-Relational Algebra and Calculus Questions and Answers
Relational Algebra and Relational Calculus form the theoretical foundation of DBMS programming questions and answers frequently asked in technical interviews and campus placement exams such as TCS, Infosys, and Accenture. These topics explain how queries are represented and optimized in databases. By understanding operations like selection, projection, join, and division, you can effectively translate queries into SQL. Practicing DBMS MCQs and programming interview questions with answers improves your understanding of database logic, query design, and relational schema concepts essential for technical placements.
DBMS-Relational Algebra and Calculus
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81 questions
13. The foreign key and the primary key should be defined on the same underlying domain.
- TRUE
- FALSE
15. Primary key performs the unique identification function in a relational database model.
- TRUE
- FALSE
16. In a reality, NULL is not a value, but rather the absence of a value.
- TRUE
- FALSE
17. Relational database is a finite collection of relations and a relation in terms of domains, attributes, and cuples.
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- FALSE
18. Atomic means that each value in the domain is indivisible to the relational model.
- TRUE
- FALSE
19. Superkey is an attribute, or set of attributes, that uniquely indentifies a tuple within a relation
- TRUE
- FALSE