Design a database schema for an online merch store
Designing a database schema for an online merch store requires careful consideration of the various components and entities involved in such a system. Below, I’ll provide a high-level overview of the database schema along with explanations of the tables and their relationships. Keep in mind that this is a simplified example, and a real-world implementation might require additional tables and fields based on specific requirements.
Entities and Tables
- Users Table
This table stores information about registered users.
| Field | Data Type | Description |
| UserID | INT | Primary Key, Auto-increment |
| Username | VARCHAR(50) | Unique, User’s username |
| Password | VARCHAR(255) | Hashed password |
| VARCHAR(100) | User’s email address | |
| FirstName | VARCHAR(50) | User’s first name |
| LastName | VARCHAR(50) | User’s last name |
| RegistrationDate | TIMESTAMP | Date of registration |
- Products Table
This table stores information about the products available for sale.
| Field | Data Type | Description |
| ProductID | INT | Primary Key, Auto-increment |
| Name | VARCHAR(100) | Product name |
| Description | TEXT | Product description |
| Price | DECIMAL(10, 2) | Product price |
| StockQuantity | INT | Available stock quantity |
| CategoryID | INT | Foreign Key to Categories |
| CreatedAt | TIMESTAMP | Date of product creation |
- Categories Table
This table defines product categories.
| Field | Data Type | Description |
| CategoryID | INT | Primary Key, Auto-increment |
| Name | VARCHAR(50) | Category name |
- Orders Table
This table stores information about customer orders.
| Field | Data Type | Description |
| OrderID | INT | Primary Key, Auto-increment |
| UserID | INT | Foreign Key to Users |
| OrderDate | TIMESTAMP | Date and time of the order |
| TotalAmount | DECIMAL(10, 2) | Total order amount |
| Status | VARCHAR(20) | Order status (e.g., “Pending”, “Shipped”) |
- OrderDetails Table
This table contains details of individual products within an order.
| Field | Data Type | Description |
| OrderDetailID | INT | Primary Key, Auto-increment |
| OrderID | INT | Foreign Key to Orders |
| ProductID | INT | Foreign Key to Products |
| Quantity | INT | Quantity of the product |
| Subtotal | DECIMAL(10, 2) | Subtotal for the product |
- Reviews Table
This table allows users to leave reviews for products.
| Field | Data Type | Description |
| ReviewID | INT | Primary Key, Auto-increment |
| UserID | INT | Foreign Key to Users |
| ProductID | INT | Foreign Key to Products |
| Rating | INT | Rating (e.g., 1-5) |
| Comment | TEXT | Review comment |
| ReviewDate | TIMESTAMP | Date and time of the review |
This schema provides a foundation for an online merch store. It supports user registration, product management, order processing, and product reviews. Depending on your specific requirements, you may need to extend the schema to include features like shipping information, payment methods, and more advanced product attributes. Additionally, consider incorporating indexing and normalization techniques for database optimization and performance.
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