MySQL不同版本其他结果
嘿，我在 windows 5.1.39-community 和 linux 5.1.39-log 上有 2 个版本的 mysql 我执行一个查询：
SELECT `o`.`idOffer`,
`o`.`offer_date`,
`p`.`factory`,
`c`.`short` AS `company`,
`s`.`name` AS `subcategory`,
`ct`.`name` AS `category`,
count( (select count(1) from product where idProduct=idOffer group by idOffer) ) as b
FROM `Offer` AS `o`
LEFT JOIN `Product` AS `p` ON o.idOffer = p.idOffer
LEFT JOIN `company` AS `c` ON o.company = c.id
LEFT JOIN `Subcategory` AS `s` ON s.idSubcategory = o.idSubcategory
LEFT JOIN `Category` AS `ct` ON ct.idCategory = s.idCategory
WHERE (o.idOffer = p.idOffer) GROUP BY `o`.`idOffer`
在Windows上它按预期工作，但在Linux上它说：
ERROR 1242 (21000): Subquery returns more than 1 row
有什么办法让它在Linux上工作而不需要任何mysql更新/降级？
hey, i have 2 version of mysql on windows 5.1.39-community and on linux 5.1.39-log
i execute a query:
SELECT `o`.`idOffer`,
`o`.`offer_date`,
`p`.`factory`,
`c`.`short` AS `company`,
`s`.`name` AS `subcategory`,
`ct`.`name` AS `category`,
count( (select count(1) from product where idProduct=idOffer group by idOffer) ) as b
FROM `Offer` AS `o`
LEFT JOIN `Product` AS `p` ON o.idOffer = p.idOffer
LEFT JOIN `company` AS `c` ON o.company = c.id
LEFT JOIN `Subcategory` AS `s` ON s.idSubcategory = o.idSubcategory
LEFT JOIN `Category` AS `ct` ON ct.idCategory = s.idCategory
WHERE (o.idOffer = p.idOffer) GROUP BY `o`.`idOffer`
on windows it works as it suppose, but on linux it says:
ERROR 1242 (21000): Subquery returns more than 1 row
is it any way to get it worked on linux without any mysql updates/downgrades ?
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不知道这是否与之有关，但是 Linux MySQL 表区分大小写，而 Windows 表不区分大小写（我怀疑是因为文件系统），无论如何，你有
Product和product这会导致一些问题。不知道这是否真的是你问题中的问题的原因，但它是一堵墙，你最终可能会撞到，我认为应该提出它。
No idea if this has anything to do with it, but Linux MySQL tables are case sensitive while Windows tables are not (because of the filesystem, I suspect), anyway, you have
Productandproductand that will cause some problems.Don't know if it really is the cause of the problem in your question, but it is a wall you may end up flying smack into and I thought it should be brought up.
由于您的 SQL“as b”columnResult 专门基于 SQL，并且 idOffer 的 WHERE 子句已经符合条件并且应该相同，因此我将删除此列元素的分组依据。我只能假设可能存在一些空白数据或其他被错误地包含在内的数据，并且“ID1”与“ID1”不同被错误地解释。
Since your SQL "as b" columnResult is based specifically on a SQL, and the WHERE clause of the of the idOffer already qualifies and SHOULD be the same, I would remove the group by of this columnar element. I can only assume there might be some white-space data or other that is falsely getting included and "ID1" is different than "ID1 " is getting falsely interpretted.