MySQL 在使用 UNION 的同时使用 ORDER BY

Question

我试图显示用户列表，其中 activated=1 帐户列表位于下方，而 activated=0 帐户列表位于顶部。我尝试使用 UNION 因为我需要所有非事件帐户作为 ORDER BY 创建的 DESC 而激活帐户设置为 ORDER BY email 但由于某种原因我所有ORDER BY 命令被忽略。我在这里做错了什么？

(
    SELECT 
        email, 
        roles.full role, 
        created 
    FROM sol_users users
    JOIN sol_user_roles ur ON users.id = ur.user_id 
    JOIN sol_roles roles USING(role_id) 
    WHERE activated = 0
    ORDER BY created DESC
)
UNION
(
    SELECT
        email, 
        roles.full role, 
        created
    FROM sol_users users
    JOIN sol_user_roles ur ON users.id = ur.user_id 
    JOIN sol_roles roles USING(role_id) 
    WHERE activated = 1
    ORDER BY email
)

需要将非事件用户放在顶部，以便管理员知道需要激活这些用户。

Answer 1

你不需要工会 - 尝试一下:

SELECT email, roles.full role, created 
FROM sol_users users
JOIN sol_user_roles ur ON users.id = ur.user_id 
JOIN sol_roles roles USING(role_id) 
ORDER BY activated, case activated when 1 then email end, created DESC