分组和计数但只检索一列

Question

以下SQL代码返回两列：＆＃39; product_id＆＃39;和＆＃39;反击＆＃39; 我希望它只返回＆＃39; product_id＆＃39;，是否可能？

select product_id, count(*) as counter
from accounts_products
group by product_id
order by counter DESC
limit 1

Answer 1

只需删除counter列，然后直接ORDER BY计数：

SELECT product_id
FROM accounts_products
GROUP BY product_id
ORDER BY COUNT(*) DESC
LIMIT 1