Informatics Practices Class 11: Unit -3 MCQs
Unit 3: Database concepts and the Structured Query Language Database Concepts: Introduction to database concepts and its need, Database Management System. Relational data model: Concept of domain, tuple, relation, candidate key, primary key, alternate key Advantages of using Structured Query Language, Data Definition Language, Data Query Language and Data Manipulation Language, Introduction to MySQL, creating a database using MySQL, Data Types Data Definition: CREATE DATABASE, CREATE TABLE, DROP, ALTER Data Query: SELECT, FROM, WHERE with relational operators, BETWEEN, logical operators, IS NULL, IS NOT NULL Data Manipulation: INSERT, DELETE, UPDATE [24/07, 7:04 PM] Meta AI: Here are some MCQs on the topic "Database Concepts" with explanations: MCQ 1: What is the primary purpose of a database management system (DBMS)? A) To store data B) To manage data C) To secure data D) To recover data Answer: B) To manage data Explanation: A DBMS is a software system that manages and