SQL is a technology that engineers should know in an out, and while in early 2000's you could not move an inch without knowing it, I find that the new generation of devs really considers database calls a freebie - hidden behind abstractions and ORMs. It's just a line of code, right?

This leads to highly non-performant software since, unless we have bent the laws of physics in the last 15 years, your data access layer is the most expensive one.

But we are crushing LeetCode, yeah?