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
DBMS PYQ
Describe data schema and instances.
Database Schema: Example: Schema Diagram for a Student Database Student (Name, Student_number, Class, Branch) Course (Course_name, Course_number, Department) Database Instances:
What are data models ? Briefly explain different types of data models.
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
Discuss the architecture of DBMS. What are the types of DBMS architecture ?
Types of Architecture: 1-Tier Architecture: 2-Tier Architecture: 3-Tier Architecture: Visual Explanation:
Explain the difference between database management system (DBMS) and file system.
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
Explain the differences between physical level,conceptual level and view level of data abstraction.
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
What is data abstraction ? Explain different levels ofabstraction.
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
Who are data administrators ? What are the functions of database administrator ?OR Discuss the role of database adinistrator.
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
What do you understand by database users ? Describe the different types of database users.
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
What are the advantages and disadvantages of DBMS ?
Advantages of DBMS: Disadvantages of DBMS: