SQL视图，Groupping + inner连接相同的表

Question

This is my table:

使用此查询，我获得了大部分已售商品：

SELECT [Purchased Item], SUM([Overall Quantity purchased] )
FROM ReportDraft 
GROUP BY [Purchased Item]
ORDER BY SUM([Overall Quantity purchased] )

这将返回客户购买的物品和总数量。

我如何创建这样的表

ItemName | Total quantity purchased | Customer who purchased most | Customer quantity bought

Pie--------|---------6------------|---------------Tonya----------|--------4------------|
Big Burger-|---------3------------|---------------Tonya----------|--------3------------| and etc

谢谢

Answer 1

为什么要发布新问题而不是点缀/扩展previous one？

sudo apt-get install python-gi-cairo