Mid From PDF SQL SQL & Databases

One-to-Many Relationship:?

Q: One-to-Many Relationship:?

Short answer: A common pattern where one record in a table can be associated with multiple records in another table. Example: A Customer can have many Orders, but each Order can belong to only one Customer. Real-world example (ShopNest) ShopNest’s SQL Server database stores customers, products, and orders. Good indexes and clear foreign keys keep checkout queries fast and safe. Say this in the interview Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.

Short answer: A common pattern where one record in a table can be associated with multiple records in another table. Example: A Customer can have many Orders, but each Order can belong to only one Customer.

Real-world example (ShopNest)

ShopNest’s SQL Server database stores customers, products, and orders. Good indexes and clear foreign keys keep checkout queries fast and safe.

Say this in the interview

Define — one clear sentence (the short answer above).
Example — relate it to a project like ShopNest or your real work.
Trade-off — when you would not use it.

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