我有三张桌子:我的大多数问题都是这样的:
SELECT `promotions`.* FROM `promotions` INNERJOIN `orders_promotions` ON `promotions`.`id` = `orders_promotions`.`promotions_id` WHERE `orders_promotions`.在我的上一次查询中,索引是否
下面是我的示例代码: console.log(data.val()) var keys= Object.keys(promotions) for (var i = 0; i < keys.length; i++) { var name = promotions[k].promotionName
var descripti
我对SQL有点陌生,我有一个Postgresql查询,我在Postgres 9.x中的理解是,默认情况下连接是内部连接:from physical_promotionsJOIN subscriptions ON physical_promotions.product_id = subscriptions.idJOIN referrals ON referrals.referred_user_id = users.id
where p
这个部分被称为_promotions.html.erbI,我是一个有javascript和JQuery的新手,对语法理解得不好。在要更新的页面中:<script type="text/javascript"> url: "/promotionsroutes to the following def
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