PostgreSQL Random Data Generation

Hey developer! 🎲

Need to generate promo codes for a campaign? Create a million test users? Or just mask production data for development? PostgreSQL can do much more than just SELECT random().

Let’s explore how to turn PostgreSQL into a random data generator for real-world tasks.

PostgreSQL VACUUM: What It Is and Why You Need It

What Is VACUUM in PostgreSQL?

VACUUM is PostgreSQL’s built-in cleanup tool. Let’s break down when to use it and why rushing into it can do more harm than good.

PostgreSQL Index Types

Imagine searching for your favorite song on an old mp3 player without a playlist - scrolling through tracks one by one until you stumble upon the right one. That’s PostgreSQL without indexes: huffing, puffing, and scanning every row in our huge table.

Now add indexes - and you’ve got Spotify with instant search!

Let’s quickly break down what indexes PostgreSQL has, why you need them, and how they transform your database from a turtle into a rocket. Plus - a couple of real-life examples to feel the difference.