发票，颜色，类型，计数

Question

我有一张桌子：

Invoice| Colour | Type

In_001 |  Red   | D  
In_001 |  Red   | D  
In_001 | Yellow | E  
In_002 |  Red   | H

我想要的结果是整理任何超过的发票 购买两件物品并显示计数。

见下文所需的结果：

Invoice | Colour | Type | Count

In_001  |  Red   |  D   | 2  
In_001  | Yellow |  E   | 1

备注：In_002不包括在内，因为它只购买了一件商品。

我尝试了以下命令：

select invoice, colour, type, count(invoice) from t   
group by invoice,colour,type   
having count(invoice)>1;

结果是：

Invoice | Colour | Type | Count

In_001  |  Red   |  D   | 2

请帮忙。

Answer 1

分组依据是所有三种发票，颜色和类型。所以结果将只是这样。 我们可以尝试以下查询来实现它： -

select invoice,colour,type,count(invoice) from t where invoice in
(select invoice from t group by invoice having count(invoice) >1) 
group by invoice,colour,type