Oracle SQL Select每个年龄段的总计

Question

I have a table... 我有桌子...

USER

USER_ID

USER_AGE

I need to get the total users for each age, ex: 我需要获取每个年龄段的总用户数，例如：

AGE    COUNT

   1          12

   2          27

   3          5

.... etc, all the up to 100 ....等，最多100

I have no idea how to start, any help is greatly appreciated. 我不知道如何开始，非常感谢您的帮助。

Answer 1

select user_age, count(*) as count 
from users 
group by user_age