Questions tagged [ontology]

Ontology deals with entities and how they can be categorized and organized according to their attributes. This includes how metadata is modelled and interpreted.

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What is a single-table relational database

I searched Google for the definition of a single-table relational database and found nothing but redirection to other database models. What's up? Why is this concept confusing? Every relational ...
74 votes
5 answers

Is there a name for this database schema of key values?

We process a routine data feed from a client who just refactored their database from a form that seems familiar (one row per entity, one column per attribute) to one that seems unfamiliar to me (one ...
6 votes
1 answer

EAV structure explained in Layman's terms

I've read several articles online that explain how EAV structures work, but there are different interpretations of them. Some articles mention that it's a representation of a data model metadata (or ...