Question

我试着在我的选择查询中对数量字段求和（按日期值对它们进行分组，但是Sql继续给我错误，说明不是列在我的GroupBy中分组，但我只想按日期对它们进行分组

这是我的疑问：

SELECT   Date, Clave_PDV, Che, Lin, Dish, Dish_Name, Type, 
sum(Quantity) as Quant, Price, Total, Tur, Tur_Name, Group, 
Group_Name, Pdv_Name, St_Pla, St_Che
FROM  Dish_Sales
GROUP BY Date

如何按日期对数量进行求和（数量）？

Answer 1

您将删除所有不想要的列：

SELECT Date, sum(Quantity) as Quant
FROM Dish_Sales
GROUP BY Date;

Answer 2

如果你想要按日期求和，你应该我们

SELECT   Date, sum(Quantity) as Quant
FROM  Dish_Sales
GROUP BY Date

否则，您应该对所有未聚合的列使用group by

SELECT   Date, Clave_PDV, Che, Lin, Dish, Dish_Name, Type, 
sum(Quantity) as Quant, Price, Total, Tur, Tur_Name, Group, 
Group_Name, Pdv_Name, St_Pla, St_Che
FROM  Dish_Sales
GROUP BY Date, Clave_PDV, Che, Lin, Dish, Dish_Name, Type, 
     Price, Total, Tur, Tur_Name, Group, 
      Group_Name, Pdv_Name, St_Pla, St_Che

在多个列的选择中求和1列

2 个答案: