Question

我有这样一张桌子：

Date   | Expedition Name | Invoice
___________________________________________
4/6/12 | Starsindo       | X001908
4/6/12 | Starsindo       | X001900
4/6/12 | De Ros indah    | X002008
4/6/12 | De Ros indah    | X002108
4/6/12 | De Ros indah    | X002208
4/6/12 | Starsindo       | X002308
4/6/12 | Starsindo       | X002408
4/6/12 | Starsindo       | X002508 
4/6/12 | Japex           | X002608

如何使用mysql进行查询以显示最常出现在同一日期的三次探险的名称？

我刚创建了这个查询，但仍然感到困惑：

Select  * From tb_exp_expor  Order By nama_exp_expor DESC

Answer 1

 SELECT count(*) as counta,Expedition_name,Date 
    FROM tbl_exp_expor 
    group by Expedition_name,Date
    Order by counta DESC
    limit 3

Answer 2

我认为StackOverflow上的这个问题和答案（danben）可以帮助您：
mysql: Using LIMIT within GROUP BY to get N results per group?

它包含本文的链接：
How to select the first/least/max row per group in SQL

我应该使用什么查询来解决这些问题？

2 个答案: