Entities and Attributes of Online Auction and Bidding Platforms
Let’s define the Entities and attributes for Online Auction and Bidding Platforms are:
1. User: Represents the users of Auction and bidding platform.
- U-ID(PK): Unique identifier for each user.
- Name: Username of the user.
- Email: Email address of the user.
- Password: Encrypted password of the user.
2. Buyer: Buyers of the platform.
- U-ID(FK): Foreign key referencing User table.
- B-ID(PK): Unique identifier for each buyer.
- BidHistory: History of bids placed by the buyer.
- Phone: Contact number of the buyer.
3. Auction: A process facilitated by the platform where items are bought and sold.
- A-ID(PK): Unique identifier for each auction.
- I-ID(FK): Foreign key referencing item table.
- Description: Description of the auction.
- Start Time: Time when the auction starts.
- End Time: Time when the auction ends.
- Status: Status of the auction (e.g., active, ended).
- Starting Price: Initial price set for the auction.
- Reserve Price: Minimum price required for the auction to proceed.
4. Seller: Represents the sellers of the platform.
- S-ID(PK): Unique identifier for each seller.
- Rating: Seller’s rating based on past transactions.
- Items Sold: Items sold by the seller.
5. Item: Item listed for auction by seller.
- I-ID(PK): Unique identifier for each item.
- S-ID(FK): Foreign key referencing seller table.
- A-ID(FK): Foreign key referencing auction table.
- Name: Name of the item.
- Description: Description of the item.
- Status: Status of the item (e.g., available, sold).
6. Admin: Admin is a special type of user with administrative privileges.
- A-ID(PK): Unique identifier for each admin.
- Username: Username of the admin.
- Email: Email of the admin.
- Password: Encrypted password of the admin.
- First Name: First name of the admin.
- Last Name: Last name of the admin.
How to Design a Database for Online Auction and Bidding Platforms
Online auction and bidding platforms have become increasingly popular in recent years, offering users the opportunity to buy and sell a wide range of products and services. Behind the scenes, these platforms rely on sophisticated databases to manage user accounts, listings, bids, transactions, and more.
In this article, we explore the design considerations for building a relational database system to support such platforms, focusing on key entities, relationships, and database schema design.
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