If you work with data, you should learn basic SQL. It's a lot more useful and safe than a tangle of Excel functions. The relational model was a real breakthrou

If you work with data, you should learn basic SQL. It's a lot more useful and safe than a tangle of Excel functions. The relational model was a real breakthrough. It really does describe, generically, any data structure you may have. Folks who adopted NoSQL solutions are now learning this the hard way