mysql - MySQL通过where子句计算多行

Question

我正在写一组这样的查询：

SELECT count(users.id) AS `id` FROM users WHERE `vote` = 'cont6'
SELECT count(users.id) AS `id` FROM users WHERE `vote` = 'cont7'
SELECT count(users.id) AS `id` FROM users WHERE `vote` = 'cont8'

我想知道如何/是否可以将其放入单个查询中？所以我得到一个类似于以下的结果集：

cont6 = 12
cont7 = 4
cont8 = 15

非常感谢！:)

Answer 1

SELECT vote, count(users.id) AS `id` FROM users GROUP BY vote