Database Fundamentals MCQs with Answers and Explanations

Practice Database Fundamentals MCQs. from Software Engineering & Programming subject. with solved answers and explanations. updated syllabus-based questions.

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Question 1: Which SQL statement is used to fetch data from a table?

SELECT retrieves data from database tables.

Sql Select Database Query

Question 2: What is the purpose of a primary key in a database table?

A primary key uniquely identifies each row in a table.

Primary Key Database Table Sql

Question 3: Which SQL clause is used to filter records according to a condition?

The WHERE clause is used to filter rows that match specific criteria.

Where Sql Filter Query

Question 4: Which of the following SQL commands are used for data manipulation?

INSERT, UPDATE, and DELETE are common SQL data manipulation commands.

Sql Insert Update Delete Crud

Question 5: Which database concept is used to relate one table to another?

A foreign key creates a relationship between tables in a relational database.

Foreign Key Relationship Database Sql

Question 6: What is normalization in databases mainly used for?

Normalization organizes data efficiently and reduces duplication in database design.

Normalization Database Design Redundancy Sql

Question 7: Which SQL statement is used to retrieve data from a database table?

SELECT is used to retrieve data from one or more database tables.

Sql Select Database Query

Question 8: What is the main purpose of a primary key in a database table?

A primary key uniquely identifies each row in a database table.

Primary Key Database Sql Table

Question 9: Which of the following SQL statements are used for data manipulation?

INSERT, UPDATE, and DELETE are data manipulation commands used in CRUD operations.

Sql Insert Update Delete Crud

Question 10: Which clause is used in SQL to filter rows based on a condition?

The WHERE clause is used to filter records according to specified conditions.

Sql Where Filtering Database

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