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What is NoSQL good for? (programming.dev)

submitted 1 day ago by [email protected] to c/[email protected]

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I’m versed enough in SQL and RDBMS that I can put things in the third normal form with relative ease. But the meta seems to be NoSQL. Backends often don’t even provide a SQL interface.

So, as far as I know, NoSQL is essentially a collection of files, usually JSON, paired with some querying capacity.

What problem is it trying to solve?
What advantages over traditional RDBMS?
Where are its weaknesses?
Can I make queries with complex WHERE clauses?

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[–] [email protected] 4 points 1 day ago

Yes. You can also have fields that weren't defined when you created the "table".

With something like Elasticsearch you also have tokenisation of text which obviously compresses it. If it's logs (or similar) then you also only have a limited number of unique tokens which is nice. And you can do very fast text search. And everything is set up for other things like tf-idf.