I am planning schema for an affiliate network. For all hierarchical queries I am using Postgres tablefunc extension but here is another problem. Any user can refer only 3 other users at max. So for ...
A client is asking for a database structure for a medical translation app that involves narrowing down a health issue and then asking specific questions on it. The tricky part of representing this in ...
Now there is a question we commonly use this technique to maintain the parent child relation i.e we store all the entities in one tables with a parent_id column and all top most parents have 0 in the ...
I am trying to figure out the data model for a retailer. The retailer has several stores across the country and they are modeled using the following hierarchy: Channel -> Zone -> City -> ...