Become a SELECT Star
Julia Evans, "Become a SELECT Star"
English | 2020 | ASIN: N/A | 28 pages | True PDF | 18.9 MB
English | 2020 | ASIN: N/A | 28 pages | True PDF | 18.9 MB
SQL isn’t like most programming languages. It doesn’t run in the same order you write it! NULL acts in counterintuitive ways! What’s the difference between WHERE and HAVING again?
This zine explains SELECT queries step by step with tons of examples that will show you exactly what’s happening when you run a query. You’ll be able to easily translate your questions about your data into queries and get answers fast.
★★a SQL playground★★
When learning any new computer thing, it’s really important to be able to try things out and experiment! So this zine also comes with an interactive SQL playground with all the examples tables in the zine! You can answer all of your “hey, what would happen if I did X instead of Y in that example?” questions right away.