CRUD refers to the four basic operations used to manage data in a database or application: Create, Read, Update, and Delete. These operations form the foundation of most web, mobile, and backend systems that handle persistent data.
In software development, CRUD operations are used to interact with databases through APIs or backend services. They define how data is added, retrieved, modified, and removed in applications.
For example:
- A social media app creates a new post (Create), displays posts (Read), allows editing (Update), and deletes posts (Delete).
- An e-commerce system adds new products, shows product lists, updates stock details, and removes discontinued items.
- A user management system lets admins create accounts, view users, update roles, and delete accounts.
- A blog platform enables writing, viewing, editing, and deleting articles.
Common technologies and concepts related to CRUD include:
- REST APIs
- HTTP Methods (POST, GET, PUT, DELETE)
- Databases (MySQL, MongoDB)
- Backend Frameworks (Node.js, Django, Spring Boot)
- ORM (Object Relational Mapping)
- SQL Queries
- API Endpoints
- Data Models
