MySQL 8.3 Release Notes
Task: Find the number, dealer, and price of the most expensive article.
This is easily done with a subquery:
Press CTRL+C to copySELECT article, dealer, price FROM shop WHERE price=(SELECT MAX(price) FROM shop); +---------+--------+-------+ | article | dealer | price | +---------+--------+-------+ | 0004 | D | 19.95 | +---------+--------+-------+
Another solution is to use a LEFT JOIN
, as shown here:
Press CTRL+C to copySELECT s1.article, s1.dealer, s1.price FROM shop s1 LEFT JOIN shop s2 ON s1.price < s2.price WHERE s2.article IS NULL;
You can also do this by sorting all rows descending by price and get only the first row using the MySQL-specific LIMIT
clause, like this:
Press CTRL+C to copySELECT article, dealer, price FROM shop ORDER BY price DESC LIMIT 1;
Note
If there were several most expensive articles, each with a price of 19.95, the LIMIT
solution would show only one of them.