MySQL 求和所选行

Question

我想对多行选定的 id 进行求和，我的代码是

SELECT sum(yellow) AS yellow,
       sum(orange) AS orange,
       sum(red) AS red,
       sum(blue) AS blue,
       sum(green) AS green,
       sum(purple) AS purple
FROM main
WHERE ID IN ('180 , 182')

但仅获取第一个 id，而不将两者相加。

Answer 1

将您的查询修改为

SELECT sum(yellow) AS yellow,
       sum(orange) AS orange,
       sum(red) AS red,
       sum(blue) AS blue,
       sum(green) AS green,
       sum(purple) AS purple
FROM main
WHERE ID IN ('180' , '182');
                 ^   ^
                  Place single quotes here

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