Comment by dietr1ch

3 years ago

The cool part about DBs is interleaving storing/manipulating and querying. A raw hard drive is already a DB by just allow you to write to them in that sense, but no one would consider them a decent DB.

Not all databases are relational, even though many are. Filesystems are definitely strongly overlapping with what you'd consider a document-oriented NoSQL database.

The underlying datastructures are really the same in a filesystem and a database in every way that matters.

But you can store, manipulate, and query data in a filesystem. That's what it's for.