Welcome to the Relational Databases MCQs Page

Dive deep into the fascinating world of Relational Databases with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Relational Databases, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of Relational Databases, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within DBMS.


Check out the MCQs below to embark on an enriching journey through Relational Databases. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of DBMS.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Relational Databases. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Relational Databases MCQs | Page 6 of 12

When mapping a ternary relationship with an associative entity into a relation which of the following is true?
Answer: (d).Four relations are created.
Answer: (a).The supertype primary key is assigned to each subtype.
If no multivalued attributes exist in a relation, then the relation is in what normal form?
Answer: (a).First normal form
If no multivalued attributes exist and no partial dependencies exist in a relation, then the relation is in what normal form?
Answer: (b).Second normal form
Answer: (b).A functional dependency between two or more nonkey attributes.
What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length?
Answer: (b).CHAR
If a denormalization situation exists with a many-to-many or associative binary relationship, which of the following is true?
Answer: (b).All fields are stored in two relations.
Which of the following is an advantage of partitioning?
Answer: (d).Security
Sequential retrieval on a primary key for sequential file storage has which of the following features?
Answer: (a).Very fast
Answer: (d).Be careful indexing attributes that have null values.
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