Should you store big data in Berkeley db?

Question

PHP

I currently use mysql in the project, a lot of operations with "raw" data take place per day and analytics are generated, all this is written to the database.
Such a question, is it worth storing, for example, subscribers in json (arrays are large, and there are about 500,000 of them on average) in berkeley db? Wouldn't it be fraught? and what advantages does it have over relational mysql?

Answer 1

and what advantages does it have over relational mysql?

There is no need to install a server, which allows it to be used, for example, in mobile applications.

Such a question, is it worth storing, for example, subscribers in json in berkeley db?

No.
Worth storing in 3NF.