
URI Online Judge Solution 2606 Categories Using PostgreSQL Query Language.When the data were migrated to the database, there was a small misunderstanding on the DBA.
Your boss needs you to select the ID and the name of the products, whose categorie name start with 'super'.
Schema
products| Column | Type |
| id (PK) | numeric |
| name | varchar |
| amount | numeric |
| price | numeric |
| id_categories (FK) | numeric |
categories| Column | Type |
| id (PK) | numeric |
| name | varchar |
Tables
products| id | name | amount | price | id_categories |
| 1 | Lampshade | 100 | 800 | 4 |
| 2 | Table for painting | 1000 | 560 | 9 |
| 3 | Notebook desk | 10000 | 25.50 | 9 |
| 4 | Computer desk | 350 | 320.50 | 6 |
| 5 | Chair | 3000 | 210.64 | 9 |
| 6 | Home alarm | 750 | 460 | 4 |
categories| id | name |
| 1 | old stock |
| 2 | new stock |
| 3 | modern |
| 4 | commercial |
| 5 | recyclable |
| 6 | executive |
| 7 | superior |
| 8 | wood |
| 9 | super luxury |
| 10 | vintage |
Output Sample
| id | name |
| 2 | Table for painting |
| 3 | Notebook desk |
| 5 | Chair |
URI 2606 Solution in SQL:
SELECT id,name
FROM products
WHERE id_categories
IN (SELECT id FROM Categories WHERE name LIKE 'super%')
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