获取一张评论表来同时服务应用程序和帖子表？
我创建了一个名为 comments 的表，comments 有一个名为 ItemId 的属性，该属性用作其他两个表 posts 和 apps 的外键。
这是因为我希望评论表能够同时服务于应用程序和帖子表。但是，当尝试将值插入注释表时，它会引发外键约束错误。
有谁知道以最少的重复完成我想要做的事情的最佳方法？
I've created a table called comments, comments has a property called ItemId which is used as the foreign key for two other tables posts and apps.
This is because i was hoping for the comments table to serve both the apps and posts table. However when trying to insert a value into the comments table it throws a foreign key constraint error.
Does anyone know the best way of accomplishing what I'm trying to do with the least amount of duplication?
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