Question

我正在尝试从我的表is_active = 1获取一些记录，但我的查询返回结果甚至记录is_active = 0。我确信这是我的查询错误。

这是我的查询

SELECT `id`, `postal_code`, is_archived, is_active, `email`, `company`, `partner`, `telephone`, `description`
FROM `firm`
WHERE ('is_archived' =0 AND 'is_active' = 1)
AND `email` LIKE '%%' ESCAPE '!'
OR  `company` LIKE '%%' ESCAPE '!'
OR  `partner` LIKE '%%' ESCAPE '!'
OR  `telephone` LIKE '%%' ESCAPE '!'
ORDER BY `id` DESC
LIMIT 10

请帮忙。

感谢。

Answer 1

将OR逻辑条件放在括号内，使优先级高于AND：

SELECT 
`id`, `postal_code`, is_archived, is_active, `email`, `company`, `partner`, `telephone`, `description`
FROM `firm`
WHERE 
is_archived =0 
AND is_active = 1
AND 
(`email` LIKE '%%' ESCAPE '!'
OR  `company` LIKE '%%' ESCAPE '!'
OR  `partner` LIKE '%%' ESCAPE '!'
OR  `telephone` LIKE '%%' ESCAPE '!')
ORDER BY `id` DESC
LIMIT 10

等待并且不要将列名放在单引号中：
'is_archived'和'is_active'

Answer 2

试试这个它应该适合你

SELECT `id`, `postal_code`, is_archived, is_active, `email`, `company`,`partner`, `telephone`, `description` 
FROM `firm` WHERE `is_archived` =0 AND `is_active` = 1 AND 
(`email` LIKE '%%' ESCAPE '!' 
OR `company` LIKE '%%' ESCAPE '!'
OR `partner` LIKE '%%' ESCAPE '!' 
OR `telephone` LIKE '%%' ESCAPE '!')
ORDER BY `id` DESC LIMIT 10;

不要在列中添加列名单引号

＆＃39; is_archived＆＃39; AND＆＃39; is_active＆＃39;

Answer 3

你可以试试这个：

SELECT `id`, `postal_code`, is_archived, is_active, `email`, `company`, `partner`, `telephone`, `description`
FROM `firm`
WHERE 'is_archived' = 0 AND 'is_active' = 1
AND (`email` LIKE '%%' ESCAPE '!'
OR  `company` LIKE '%%' ESCAPE '!'
OR  `partner` LIKE '%%' ESCAPE '!'
OR  `telephone` LIKE '%%' ESCAPE '!')
ORDER BY `id` DESC

Answer 4

你可能意味着这个：

SELECT `id`, `postal_code`, is_archived, is_active, `email`, `company`, 
`partner`, `telephone`, `description`
FROM `firm`
WHERE (`is_archived` =0 AND `is_active` = 1)
AND (`email` LIKE '%%' ESCAPE '!'
OR  `company` LIKE '%%' ESCAPE '!'
OR  `partner` LIKE '%%' ESCAPE '!'
OR  `telephone` LIKE '%%' ESCAPE '!')
ORDER BY `id` DESC
LIMIT 10

你遗漏了括号。请参阅以下关于operator precedence的文章你错误地引用了列is_archived和is_active，正如Nirav正确指出的那样。

Answer 5

这是因为您在此处将string与numeric值进行比较，

WHERE ('is_archived' =0 AND 'is_active' = 1)

应该是，

WHERE (`is_archived` = 0 AND `is_active` = 1)

不应使用'引用列名称所以完整的查询应该是，

SELECT `id`, `postal_code`, is_archived, is_active, `email`, `company`, `partner`, `telephone`, `description`
FROM `firm`
WHERE (`is_archived` =0 AND `is_active` = 1)
AND (`email` LIKE '%%' ESCAPE '!'
OR  `company` LIKE '%%' ESCAPE '!'
OR  `partner` LIKE '%%' ESCAPE '!'
OR  `telephone` LIKE '%%' ESCAPE '!')
ORDER BY `id` DESC
LIMIT 10

MySQL返回所有记录甚至是否有效

5 个答案:

试试这个它应该适合你