[crgwbr]

I believe OP is just referring to the ability to run adhoc queries. Typically nosql solutions are built to be performt for common access patterns, at the expense of being difficult or impossible to query in unplanned ways. SQL DBs are very good in that regard.

[shoguning]

Thanks! And yes, I agree. The ability to write ad hoc SQL is a great skill.

[jonathanzufi]

Totally. I’ve always admired SQL wizards and their ability to (quickly) produce the most optimal queries given the relatively limited syntax (compared to what you can do with frameworks like, for example, LINQ today).