I want to create an authentication system similar to Stackoverflow\'s. Users can create/login with an account on my site or create/login with an openid from various providers.
I\'ve just read the following posts on the same topic: Facebook like notifications tracking (DB Design) and
Take for an instance the \'facemash\'(zuckerberg\'s) where the pictures were compared. now if i have an account for every user of mine and i am kinda doing the same thing where the user like one or th
I am wondering about a \'many to two\' relationship. The child can be linked to either of two parents, but not both. Is there any way to reinforce this? Also I would like to prevent duplica开发者_如何
So I have a schema I\'ve developed that has a table that acts a junction table for multiple entities.This is for the purpose of tagging.I have my entities use GUIDs and then I\'m able to centralize th
I am working on a project (based in Django although that\'s not really relevant to my question) and I am struggling to work out the best way to represent the data models.
I\'m trying to create a single table for private messaging on a website. I created the following table which I think is efficient but I would really appreciate some feedback.
First, some details about the website and the database structure - With my website you can learn English words, and you can insert on each word a sentence,an association, an image, in addition - each
which will be the best approach for a table design for keeping statuses for a product: Product Accepted
I have results that are calculated from multiple rows in many different tables.These results are then displayed in a profile.To show the most current results on request, should i store these results i
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