如何按一列和第二個總和進行分組？

Question

tsql新手在這裏。

我有一個表，與此類似：

CarId CarName UserId RentedTimes CrashedTimes 
````````````````````````````````````````````````````````` 
1  Ferrari  1   2    0 
2  DB9   1   5    0 
3  Ferrari  2   4    0 
4  Audi  3   1    0 
5  Audi  1   1    0 

假設表被稱爲「汽車」，我想選擇的次，每次車租給總數。根據上表，法拉利共租了6次，DB9五次和奧迪兩次。

我試着這樣做：

select CarName, SUM(RentedTimes) 
from Cars 
group by CarName, RentedTimes 
order by RentedTimes desc  

，但是，它返回法拉利的兩排2,4爲租時間等..

如何選擇所有的車，總請各出租一次？

感謝

---

編輯要包括在查詢排序順序，對不起。

Answer 1

select CarName, SUM(RentedTimes) 
from Cars 
group by CarName 
ORDER BY SUM(RentedTimes) DESC 

通過