如何减少SQLite查询中的行数？

Question

我有两列我想要数据但是当我使用时：

SELECT rank, points FROM game

我得到这样的一切：

Rank | Points

rank_1 | 10
rank_2 | 5
rank_3 | 20
rank_1 | 5
rank_1 | 6
rank_2 | 4

我无法弄清楚如何将具有相同排名的所有人分组到一行中，并将所有个人点分组为一行。 像这样：

Rank | Points

rank_1 | 21
rank_2 | 9
rank_3 | 20

所以我可以看到哪个等级的总分最多。

Answer 1

这是一个非常基本的GROUP BY SUM()：

Select Rank, Sum(Points) As Points
From Game
Group by Rank

Answer 2

SELECT rank, SUM(points) FROM game GROUP BY rank

Answer 3

Select [rank], sum(points) as points
from game
group by [rank]
order by sum(points) desc;