Mysql根据日期查询三张表

Question

我正在尝试根据 MYSQL 中的订阅开始日期获取用户信息。

这就是我到目前为止所想出的..

    SELECT a.id, a.user_login, a.user_email, c.cardtype, c.accountnumber, a.user_pass, a.user_registered
    FROM users a
    INNER JOIN memberships_users b
    ON b.user_id = a.id
    INNER JOIN memberships_order c
    ON c.user_id = a.id
    WHERE b.status = 'active' AND 
          (c.cyckle_period = 6 AND 
          ('2016-06-01 00:00:00' < (SELECT c.startdate ORDER BY c.startdate DESC LIMIT 1)) 
          OR 
          (c.cyckle_period = 1 AND 
          ('2015-12-01 00:00:00' < (SELECT c.startdate ORDER BY c.startdate DESC LIMIT 1));

此查询向我显示错误消息“您的 SQL 语法有错误；请检查与您的 MySQL 服务器版本相对应的手册，以了解在第 8 行‘LIMIT 0, 30’附近使用的正确语法”。

Answer 1

我在您发布的代码中没有看到任何LIMIT 0, 30。你发布了正确的代码吗？顺便说一句，你下面的部分是完全错误的

'2015-12-01 00:00:00' < (SELECT c.startdate ORDER BY c.startdate DESC LIMIT 1)

应该是

'2015-12-01 00:00:00' < SELECT max(startdate) FROM memberships_order

更改您的 WHERE 部分，如下所示

WHERE b.status = 'active' AND 
      c.cyckle_period IN (6, 1) AND 
      '2015-12-01 00:00:00' < (SELECT max(startdate) FROM memberships_order);