Question

我有下面列出的查询，它来自PDO语句。除了collectionId = 3部分之外，查询中的所有内容都可以正常工作。它与其他汉堡人一起回归......

我已经盯着这个看了一会儿，看不出有什么不对，这一切对我来说都很好看？

SELECT  `Hat`.`id` AS  `Hat_id` ,  `Hat`.`hatCode` AS  `Hat_hatCode` ,  `Hat`.`hatCodeOther` AS  `Hat_hatCodeOther` ,  `Hat`.`name` AS  `Hat_name` ,  `Hat`.`description` AS `Hat_description` ,  `Hat`.`colorId` AS  `Hat_colorId` ,  `Hat`.`collectionId` AS  `Hat_collectionId` ,  `Hat`.`mainPicture` AS  `Hat_mainPicture` ,  `Hat`.`subPicture` AS `Hat_subPicture` ,  `Hat`.`type` AS  `Hat_type` ,  `Hat`.`featured` AS  `Hat_featured` ,  `Hat`.`published` AS  `Hat_published` ,  `Hat`.`deleted` AS  `Hat_deleted` 
FROM  `modx_hats` AS  `Hat` 
WHERE (
`Hat`.`published` =1
AND  `Hat`.`collectionId` =  '3'
AND  `Hat`.`colorId` LIKE  '%||2||%'
OR  `Hat`.`colorId` LIKE  '2||%'
OR  `Hat`.`colorId` LIKE  '%||2'
OR  `Hat`.`colorId` LIKE  '2'
)
LIMIT 0 , 30

Answer 1

你能试试吗，为OR分组添加了()

WHERE (
`Hat`.`published` =1
AND  `Hat`.`collectionId` =  '3'
AND ( `Hat`.`colorId` LIKE  '%||2||%'
OR  `Hat`.`colorId` LIKE  '2||%'
OR  `Hat`.`colorId` LIKE  '%||2'
OR  `Hat`.`colorId` LIKE  '2'
)
)

参考：SQL Query multiple AND and OR's not working

Answer 2

您的OR条件必须在括号中：

SELECT  `Hat`.`id` AS  `Hat_id` ,  `Hat`.`hatCode` AS  `Hat_hatCode` ,  `Hat`.`hatCodeOther` AS  `Hat_hatCodeOther` ,  `Hat`.`name` AS  `Hat_name` ,  `Hat`.`description` AS `Hat_description` ,  `Hat`.`colorId` AS  `Hat_colorId` ,  `Hat`.`collectionId` AS  `Hat_collectionId` ,  `Hat`.`mainPicture` AS  `Hat_mainPicture` ,  `Hat`.`subPicture` AS `Hat_subPicture` ,  `Hat`.`type` AS  `Hat_type` ,  `Hat`.`featured` AS  `Hat_featured` ,  `Hat`.`published` AS  `Hat_published` ,  `Hat`.`deleted` AS  `Hat_deleted` 
FROM  `modx_hats` AS  `Hat` 
WHERE (
`Hat`.`published` =1
AND  `Hat`.`collectionId` =  '3'
AND  (`Hat`.`colorId` LIKE  '%||2||%'
OR  `Hat`.`colorId` LIKE  '2||%'
OR  `Hat`.`colorId` LIKE  '%||2'
OR  `Hat`.`colorId` LIKE  '2')
)
LIMIT 0 , 30

Answer 3

您没有指定您想要过滤的具体内容，但您的问题很可能是条件的评估与您的想法不同 - 您如何期望OR和AND（没有括号将它们分组）评估？

现在，查询返回满足EITHER

的所有记录

`Hat`.`published` =1 AND
`Hat`.`collectionId` =  '3' AND
`Hat`.`colorId` LIKE  '%||2||%' `

满足任何其他限制的OR：

OR  `Hat`.`colorId` LIKE  '2||%'
OR  `Hat`.`colorId` LIKE  '%||2'
OR  `Hat`.`colorId` LIKE  '2'

这一切都是将括号设置为正确的问题。我的猜测是你想要所有已发布的记录= 1，collectionId = 3，以及你给出的colorIds之一。为此，您必须相应地对其进行分组：

WHERE (
`Hat`.`published` =1
AND  `Hat`.`collectionId` =  '3'
AND
  (
    `Hat`.`colorId` LIKE  '%||2||%'
    OR  `Hat`.`colorId` LIKE  '2||%'
    OR  `Hat`.`colorId` LIKE  '%||2'
    OR  `Hat`.`colorId` LIKE  '2'
  )
)

mysql查询未按预期过滤AND

3 个答案: