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MySQL 5.5 Reference Manual  /  ...  /  Maximum of Column per Group

3.6.3 Maximum of Column per Group

Task: Find the highest price per article.

SELECT article, MAX(price) AS price
FROM   shop
GROUP BY article;

+---------+-------+
| article | price |
+---------+-------+
|    0001 |  3.99 |
|    0002 | 10.99 |
|    0003 |  1.69 |
|    0004 | 19.95 |
+---------+-------+

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