本文介绍了匹配 IN 子句中的所有值的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
有没有办法确保 IN 子句中的所有值都匹配?
Is there a way to ensure all values in an IN clause are matched?
示例:
我可以将 IN 用作:IN (5,6,7,8).
I can use IN as: IN (5,6,7,8).
我需要它像 AND 一样跨多行工作.
I need it to work like an AND across multiple rows.
更新:我需要这个来列出符合指定参数的 db 公司.公司和分类法是多对多的关系.我正在使用 Yii 框架.这是我的控制器的代码:
UPDATE: I need this to list companies from db that fit specified parameters. Companies and taxonomy are MANY TO MANY relation. I'm using Yii framework. And this is the code of my controller:
public function actionFilters($list)
{
$companies = new CActiveDataProvider('Company', array(
'criteria' => array(
'condition'=> 'type=0',
'together' => true,
'order'=> 'rating DESC',
'with'=>array(
'taxonomy'=>array(
'condition'=>'term_id IN ('.$list.')',
)
),
),
));
$this->render('index', array(
'companies'=>$companies,
));
}
推荐答案
你可以这样做:
select ItemID
from ItemCategory
where CategoryID in (5,6,7,8) <-- de-dupe these before building IN clause
group by ItemID
having count(distinct CategoryID) = 4 <--this is the count of unique items in IN clause above
如果您提供您的架构和一些示例数据，我可以提供更相关的答案.
If you provide your schema and some sample data, I can provide a more relevant answer.
SQL 小提琴示例
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