Entities and Attributes in Databases for Web Applications
Entities in a web application database represent various aspects of the application domain, such as users, products, orders, transactions, and content, while attributes describe their characteristics. Common entities and their attributes include:
User
- UserID (Primary Key): Unique identifier for each user.
- Username: Unique username or identifier for authentication.
- Email, Password: Credentials for user authentication.
Product
- ProductID (Primary Key): Unique identifier for each product.
- Name, Description: Description of the product and its features.
- Price: Price of the product.
Order
- OrderID (Primary Key): Unique identifier for each order.
- UserID: Identifier for the user who placed the order.
- ProductID: Identifier for the product included in the order.
- Quantity: Quantity of the product ordered.
- Timestamp: Date and time when the order was placed.
Content
- ContentID (Primary Key): Unique identifier for each content item.
- Title, Description: Description of the content item.
- URL: URL or path to the content item (e.g., image, video, document).
How to Design a Database for Web Applications
Web applications have become ubiquitous, powering various online services and platforms across industries. Behind the seamless functionality of web applications lies a well-designed database architecture capable of storing, retrieving, and managing data efficiently. In this article, we will explore the essential principles of designing databases tailored specifically for web applications.