输出MySQL记录列表，按类别分组？

Question

我有这样的数据：

Category     Product
Mustards     Hot Mustard
Mustards     Horseradish Mustard
Mustards     Honey Mustard
Sauces       Tomato Sauce
Sauces       Barbeque Sauce

我想得到这个输出：

Mustards
Hot Mustard
Horseradish Mustard
Honey Mustard

Sauces
Tomato Sauce
Barbeque Sauce

我以为我可以用GROUP BY和/或DISTINCT来做，像这样：

    SELECT DISTINCT category, prodName
    FROM recipes
    GROUP BY category
    ORDER BY category, prodName ASC

但我运气不好。有人可以帮忙吗？

谢谢 - 乔

Answer 1

试试这个：

SELECT category, GROUP_CONCAT(ProdName) as Product
FROM recipes
GROUP BY category
ORDER BY category, ProdName ASC

<强>输出：

CATEGORY     PRODUCT
----------------------------------------------------------
Mustards     Hot Mustard,Horseradish Mustard,Honey Mustard
Sauces       Tomato Sauce,Barbeque Sauce

See this SQLFiddle