Watch 10 video solutions for Product's Price for Each Store, a easy level problem involving Database. This walkthrough by NeetCode has 747,485 views views. Want to try solving it yourself? Practice on FleetCode or read the detailed text solution.
Table: Products
+-------------+---------+
| Column Name | Type |
+-------------+---------+
| product_id | int |
| store | enum |
| price | int |
+-------------+---------+
In SQL, (product_id, store) is the primary key for this table.
store is a category of type ('store1', 'store2', 'store3') where each represents the store this product is available at.
price is the price of the product at this store.
Find the price of each product in each store.
Return the result table in any order.
The result format is in the following example.
Example 1:
Input: Products table: +-------------+--------+-------+ | product_id | store | price | +-------------+--------+-------+ | 0 | store1 | 95 | | 0 | store3 | 105 | | 0 | store2 | 100 | | 1 | store1 | 70 | | 1 | store3 | 80 | +-------------+--------+-------+ Output: +-------------+--------+--------+--------+ | product_id | store1 | store2 | store3 | +-------------+--------+--------+--------+ | 0 | 95 | 100 | 105 | | 1 | 70 | null | 80 | +-------------+--------+--------+--------+ Explanation: Product 0 price's are 95 for store1, 100 for store2 and, 105 for store3. Product 1 price's are 70 for store1, 80 for store3 and, it's not sold in store2.