Database Systems

Database Environments database schema

Database schema A schema is the structure or blueprint of a database. Defines how data is organised and how relationships are managed. Types of Schema Physical Schema – How data is stored on disk. Logical Schema – structure of the database (tables, relationships) View Schema – customised views for users. Data Model A data model […]

Introduction and overview

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Introduction In the modern digital era, almost every system we interact with—online shopping, banking, social media, and university portals—relies on database systems. Databases help organizations store, manage, and retrieve large volumes of data efficiently and securely. This article provides a clear and beginner-friendly introduction to database systems, explaining key concepts such as data, databases, DBMS,

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