It's been a decade-plus of the Not-Only-SQL (NoSQL) movement where a large variety of specialized database platforms have been developed and sold. It seems that there are so many different platforms for data stores that you can find one for whatever specialized type of data you are working with. However, is that what people are doing to store data in their applications?

I saw this piece on the return to the general-purpose database, postulating that a lot of the NoSQL database platforms have added additional capabilities that make them less specialized and more generalized. I've seen some of this, just as many relational platforms have added features that compete with one of the NoSQL classes of databases. The NoSQL datastores might be adding SQL-like features because some of these platforms are too specialized, and the vendors have decided they need to cover a slightly wider set of use cases.

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