Maybe I'm misunderstanding your comment but... Real businesses need real solutions for their use cases. SQL is not necessarily the right tool for "that" job.
If such a "solution" involves safely querying, analyzing, storing and manipulating data in any way, SQL and relational databases are usually the best option in practice.
It's much more effective and efficient to use a SQL query than it is to throw together a huge amount of imperative JavaScript code (that's usually very specific to a single NoSQL database, as well) merely to perform the equivalent query.
It's much safer to use a database that offers true support for transactions and constraints, rather than trying to hack together that functionality in some Ruby or PHP data layer code, or relying on some vague promise of "eventual consistency", for instance.
It's much more maintainable, and leads to higher-quality data, to spend some time thinking about a schema, rather than just arbitrarily throwing data into a schema-less system, and then having to deal with the lack of a schema throughout any application code that's ever written.
Aside from an extremely small and limited handful of situations (Google and Facebook, for instance), relational databases are the best tool for the job.
It's much more effective and efficient to use a SQL query than it is to throw together a huge amount of imperative JavaScript code (that's usually very specific to a single NoSQL database, as well) merely to perform the equivalent query.
It's much safer to use a database that offers true support for transactions and constraints, rather than trying to hack together that functionality in some Ruby or PHP data layer code, or relying on some vague promise of "eventual consistency", for instance.
It's much more maintainable, and leads to higher-quality data, to spend some time thinking about a schema, rather than just arbitrarily throwing data into a schema-less system, and then having to deal with the lack of a schema throughout any application code that's ever written.
Aside from an extremely small and limited handful of situations (Google and Facebook, for instance), relational databases are the best tool for the job.