Database

An Entity Relationship Diagram (ERD) is a graphical representation of the structure of a database. ERDs show the relationships between tables in a database, making it easier to understand the design and structure of the database. Components of an ERD An ERD is made up of the following components: Entities Attributes Relationships Entities An entity represents an object that you want to manage in your database. For example, a student, a professor, or a course could all be entities. ...

Developers dealing with databases will definitely have heard of ORM at least once. But many are unsure about what it is exactly and why it is used. This will help you learn about everything from ORM concepts to real-world applications. Table of Contents ORM concepts and definitions How ORM works Major ORM frameworks Advantages and Disadvantages of ORM Real-world use cases of ORM Frequently Asked Questions (FAQ) 1. ORM concepts and definitions ORM (Object-Relational Mapping) is a technology that bridges object-oriented programming and relational databases. Simply put, it is a tool that automatically maps objects used in programming languages to database tables. ...