Design a database schema for an online merch store

Designing a database schema for an online merchandise store requires careful consideration of various factors, including the type of merchandise, functionality, scalability, security, and more. Here's a summarized and customized output for designing such a database schema based on the provided requirements:
Database Schema for an Online Merchandise Store
Entities and their attributes:
Products:
ProductID (Primary Key)
Name
Description
Price
StockQuantity
CategoryID (Foreign Key referencing Categories)
ManufacturerID (Foreign Key referencing Manufacturers)
Size (if applicable)
Color (if applicable)
Material (if applicable)
Categories:
CategoryID (Primary Key)
Name
Manufacturers:
ManufacturerID (Primary Key)
Name
Location
Customers:
CustomerID (Primary Key)
FirstName
LastName
Email
Password (hashed)
Address
PhoneNumber
Orders:
OrderID (Primary Key)
CustomerID (Foreign Key referencing Customers)
OrderDate
Status (e.g., Pending, Shipped, Delivered)
OrderItems:
OrderItemID (Primary Key)
OrderID (Foreign Key referencing Orders)
ProductID (Foreign Key referencing Products)
Quantity
Subtotal
Payments:
PaymentID (Primary Key)
OrderID (Foreign Key referencing Orders)
PaymentDate
Amount
PaymentMethod (e.g., Credit Card, PayPal)
Reviews:
ReviewID (Primary Key)
ProductID (Foreign Key referencing Products)
CustomerID (Foreign Key referencing Customers)
Rating (e.g., 1-5 stars)
Comment
ReviewDate
Relationships:
Each product belongs to one category, and each category can have multiple products. (One-to-Many relationship between Categories and Products)
Each product is manufactured by one manufacturer, and each manufacturer can produce multiple products. (One-to-Many relationship between Manufacturers and Products)
Each order is placed by one customer, but a customer can place multiple orders. (One-to-Many relationship between Customers and Orders)
Each order contains multiple order items, and each order item corresponds to one product. (One-to-Many relationship between Orders and OrderItems, and OrderItems and Products)
Each order may have one payment, and each payment is associated with one order. (One-to-One relationship between Orders and Payments)
Each product can have multiple customer reviews, and each review is associated with one product and one customer. (One-to-Many relationship between Products and Reviews, and Customers and Reviews)
Additional Considerations:
Implement security measures for storing and handling customer passwords, such as hashing and salting.
Implement indexes on frequently queried columns to optimize database performance.
Implement validation and constraints to ensure data integrity.
Consider implementing timestamps for tracking when records are created or updated.
Depending on the scale of your store and performance requirements, you might need to consider database optimization techniques such as caching, sharding, or replication.
This schema serves as a foundation and can be further customized and expanded to meet the specific needs and complexity of your online merchandise store.
Please note that this is a general database schema based on common requirements for an online merchandise store. Actual implementations may vary based on the unique needs of your business and the technologies you choose to use.