输出查询时重复列名称

Question

每当GROUP BY信息发生变化时，是否可以在执行查询时重复数据库表的列的名称？我的查询按列分组。

SELECT  name.fname as First_Name,  
  name.sales as Sales, 
  name.city as City 
FROM name 
GROUP BY city 
ORDER BY name.fname;

Answer 1

我想你想要这个：

SELECT  name.fname as First_Name,  
  name.sales as Sales, 
  name.city as City 
FROM name 
ORDER BY city, fname;