DATABASE MODELLING,JOINS,RELATIONSHIPS & SCHEMA (opens in new tab)

Database Modelling: Database modelling is the systematic process of defining data structures, constraints, and relationships to represent real-world information. It is executed in three distinct, progressive phases to ensure alignment between business requirements and technical implementation: Conceptual Modelling: This is the highest level of abstraction, focusing purely on business entities and their relationships without technical details. It identifies what data is required (e.g., "Custom...