如何用聚合函数sql server选择列

Question

我需要选择两列。 计算一列的总和并显示它2.显示列。 所以我尝试下面的代码

SELECT Sum(CONVERT(FLOAT, Replace(total, Char(0), ''))) AS Total, 
       [product name] 
FROM   tb_sales_entry_each_product 
GROUP  BY [sales date] 

错误信息

Column 'tb_sales_entry_each_product.Product Name' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.

我犯了什么错误。谢谢

Answer 1

尝试这个：

select SUM(CONVERT(float, REPLACE(Total, CHAR(0), ''))) as Total, 
[Product Name]  ,[Sales Date]
from tb_sales_entry_each_product 
group by [Sales Date],[Product Name]

Answer 2

只需要分组

select SUM(CONVERT(float, REPLACE(Total, CHAR(0), ''))) as Total, [Product Name]  
from tb_sales_entry_each_product group by [Sales Date], [product name]

如果您进行了商业计数总和等，则需要对任何其他列进行分组。 这就是你所有的遗失