Entities and Attributes in Databases for Used Cars Selling Application

Features of Databases for Used Cars Selling Application

Entities in a used car application database represent various aspects of car listings, user interactions, transactions, and reviews, while attributes describe their characteristics. Common entities and their attributes may include

Car Listing Table

CarID (Primary Key): Unique identifier for each car listing.
Make, Model, Year: Details about the car’s make, model, and year.
Mileage, Price: Information about the car’s mileage and selling price.
Features: Additional features and specifications of the car.
SellerID: Identifier for the user selling the car.
Location: Location of the car for sale.

User Table

UserID (Primary Key): Unique identifier for each user.
Username, Email: User’s login credentials and contact information.
PasswordHash: Securely hashed password for user authentication.
ProfilePicture: URL or reference to the user’s profile picture.
UserType: User type (e.g., seller, buyer).

Transaction Table

TransactionID (Primary Key): Unique identifier for each transaction.
BuyerID, SellerID: Identifiers for the buyer and seller involved in the transaction.
CarID: Identifier for the car being sold.
OfferPrice: Offered price for the car.
TransactionStatus: Status of the transaction (e.g., pending, completed).

Review Table

ReviewID (Primary Key): Unique identifier for each review.
ReviewedUserID: Identifier for the user being reviewed (seller or buyer).
ReviewerID: Identifier for the user leaving the review.
Rating: Numeric rating given by the reviewer.
Comment: Optional comment or feedback provided by the reviewer.

How to Design a Database For Used Cars Selling Application?

Designing a database for a used car application involves considerations such as data structure, scalability, performance optimization, and user experience. A robust database serves as the backbone for managing car listings, user accounts, transactions, reviews, and other essential functionalities, ensuring a smooth and hassle-free buying and selling process.