Describe data independence with its types
Explain data independence with its types. Data independence is a concept in database management that refers to the ability to make changes to the database … Read more
Explain data independence with its types. Data independence is a concept in database management that refers to the ability to make changes to the database … Read more
Database Schema: Example: Schema Diagram for a Student Database Student (Name, Student_number, Class, Branch) Course (Course_name, Course_number, Department) Database Instances:
Data models are tools used to define how the logical structure of a database is represented. They help describe data, relationships, semantics, and consistency constraints … Read more
Types of Architecture: 1-Tier Architecture: 2-Tier Architecture: 3-Tier Architecture: Visual Explanation:
Database Management System (DBMS) and File System: DBMS File System Level of Data Abstraction Lowest level Middle level Description of Data Storage Describes how data … Read more
Aspect Physical Level Conceptual Level View Level 1. Abstraction Level Lowest Middle Highest 2. Focus How data is stored What data is stored User interaction … Read more
Data abstraction is a concept in database management that involves hiding unnecessary details from users, allowing them to interact with the system in a simplified … Read more
Database administrators (DBAs) are professionals responsible for managing and maintaining databases within an organization. Their role involves ensuring the integrity, security, and efficient performance of … Read more
Database Users: Database users are individuals or entities that interact with a database to perform various tasks. They can be categorized into different types based … Read more
Advantages of DBMS: Disadvantages of DBMS: