MySQL查询未提供所需的输出

我有一个MySQL查询：

SELECT DATE_FORMAT(pickupdatetime, '%m/%y') AS mmyy,
SUM(CASE WHEN (status = 'Canceled' or 'Unconfirmed' or 'Communicating') and (class = 'local') THEN quotedprice ELSE 0 END) AS potentiallocal,
SUM(CASE WHEN (status = 'Closed' or 'Confirmed' or 'Open') and (class = 'local') THEN quotedprice ELSE 0 END) AS actuallocal,

SUM(CASE WHEN (status = 'Canceled' or 'Unconfirmed' or 'Communicating') and (class = 'travel') THEN quotedprice ELSE 0 END) AS potentialtravel,
SUM(CASE WHEN (status = 'Closed' or 'Confirmed' or 'Open') and (class = 'travel') THEN quotedprice ELSE 0 END) AS actualtravel,

SUM(CASE WHEN (status = 'Canceled' or 'Unconfirmed' or 'Communicating') and (class = 'suv') THEN quotedprice ELSE 0 END) AS potentialsuv,
SUM(CASE WHEN (status = 'Closed' or 'Confirmed' or 'Open') and (class = 'suv') THEN quotedprice ELSE 0 END) AS actualsuv,

SUM(CASE WHEN (status = 'Canceled' or 'Unconfirmed' or 'Communicating') and (class = 'minivan') THEN quotedprice ELSE 0 END) AS potentialminivan,
SUM(CASE WHEN (status = 'Closed' or 'Confirmed' or 'Open') and (class = 'minivan') THEN quotedprice ELSE 0 END) AS actualminivan

FROM `reservations`
WHERE pickuploc = 'la'
GROUP BY DATE_FORMAT(pickupdatetime, '%m/%y'), YEAR(pickupdatetime)
ORDER BY YEAR(pickupdatetime), DATE_FORMAT(pickupdatetime, '%m/%y')

---

我想获得

状态

已取消

，

未确认

的

报价

的组合值，对于

本地

类通信，然后对于

状态

已关闭或

已确认

或

本地

类打开的组合值。我尝试对每一类（本地、旅行、suv、小型货车）再次执行此操作，但它没有给出正确的输出，我做错了什么？

所有表达式如下：

WHEN (status = 'Canceled' or 'Unconfirmed' or 'Communicating')

WHEN (status = 'Canceled' or status = 'Unconfirmed' or status = 'Communicating')

是错误的，因为它们等同于：

WHEN (status = 'Canceled' or 0 or 0)

最后相当于：

WHEN (status = 'Canceled')

因为字符串

'unconfirm'

和

'communication'

是布尔表达式的操作数，所以它们被隐式转换为整数。
您应该做的是更改表达式，如：

WHEN (status = 'Canceled' or 'Unconfirmed' or 'Communicating')

WHEN (status = 'Canceled' or status = 'Unconfirmed' or status = 'Communicating')

或：

---

借助@草莓，你看到的数据是什么？你希望看到什么？你到底看到了什么？没有这些调试比实际试图识别和解决问题要复杂得多。我看到的数据根本不是我试图查询的数据的正确值，这肯定是我的代码有问题。