# An order_items table has (order_id, product_id, product_name, quantity)

Canonical URL: <https://datadriven.io/problems/an-orderitems-table-has-orderid-productid-productname-898e7a9d>

Domain: Data Modeling · Difficulty: medium

## Problem

An order_items table has (order_id, product_id, product_name, quantity). The product_name depends only on product_id, not the full composite key. Extract products into a separate table to achieve 2NF.

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