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Introduction: Database Management System (DBMS) | Database Management System (DBMS) - Computer Science Engineering (CSE) PDF Download

Introduction: Database Management System (DBMS) | Database Management System (DBMS) - Computer Science Engineering (CSE)

The document Introduction: Database Management System (DBMS) | Database Management System (DBMS) - Computer Science Engineering (CSE) is a part of the Computer Science Engineering (CSE) Course Database Management System (DBMS).
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FAQs on Introduction: Database Management System (DBMS) - Database Management System (DBMS) - Computer Science Engineering (CSE)

1. What is a Database Management System (DBMS) and why is it important in Computer Science Engineering?
Ans. A Database Management System (DBMS) is software that interacts with end users, applications, and the database itself to capture and analyze data. It provides a systematic way to store, retrieve, and manage data. In Computer Science Engineering, DBMS is crucial because it enables efficient data handling, integrity, security, and supports various applications ranging from small systems to large-scale enterprise solutions.
2. What are the main types of Database Management Systems?
Ans. The main types of Database Management Systems include Relational DBMS (RDBMS), which uses tables to store data; NoSQL DBMS, which is designed for unstructured data and scalability; Object-oriented DBMS that integrates object-oriented programming language features; and Hierarchical and Network DBMS, which use tree-like and graph structures, respectively. Each type serves different data storage needs and applications.
3. How does normalization work in a DBMS and why is it necessary?
Ans. Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity. It involves dividing a database into tables and establishing relationships between them. This process is necessary to eliminate duplicate data, ensure data dependencies are properly enforced, and enhance the performance of the database by structuring data efficiently.
4. What are the key functions of a Database Management System?
Ans. The key functions of a Database Management System include data storage, retrieval, and management; supporting multiple users and transactions; ensuring data integrity and security; data backup and recovery; and providing tools for querying and reporting. These functions enable users to effectively manage and utilize large amounts of data.
5. What is the difference between primary key and foreign key in a database?
Ans. A primary key is a unique identifier for a record in a database table, ensuring that no two records can have the same primary key value. A foreign key, on the other hand, is a field (or collection of fields) in one table that uniquely identifies a row of another table, creating a relationship between the two tables. The primary key enforces entity integrity, while the foreign key maintains referential integrity between related tables.
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