Postgres DB Size Command

🐘 Postgres DB Size Command: How to Find the Size of All Databases? 📊

Are you struggling to find the size of all your Postgres databases? No worries, we've got you covered! In this blog post, we'll walk you through the process, step by step. 🚶‍♂️🚶‍♀️

But first, let's address the question at hand:

❓ The Problem: Finding the Size of All Your Databases

So, you already know how to find the size of a specific database using the pg_database_size('databaseName') command. 🆒 But what if you want to get the sizes of all your databases in one go? 🤔

💡 The Solution: The Command You've Been Looking For

To find the size of all your databases, the command you need is:

SELECT pg_size_pretty(pg_total_relation_size(pg_stat_all_tables::regclass))
FROM pg_stat_all_tables;

🙌🙌 Isn't it awesome? Let's quickly break it down.

1. pg_stat_all_tables: This function returns statistics about each of the tables in your databases.

2. pg_total_relation_size: It calculates the total size of a table, including all associated indexes and toasted tables.

3. pg_size_pretty: This function takes an argument in bytes and converts it into a human-readable format. So, instead of getting a bunch of numbers, you'll see sizes like "10 MB" or "1 GB". 📏

By combining these functions and querying the pg_stat_all_tables view, you can easily find the size of all your databases. Piece of cake, right? 🍰

🚀 Time to Take Action!

Now that you've learned how to find the sizes of all your databases, it's time to put this knowledge into action. Open up your favorite Postgres client and try running the command. 🛠️

But wait, before you go, we'd love to hear from you! Have you faced any other Postgres-related challenges lately? Or do you have any other tech topics you'd like us to cover in our next blog post? Let us know in the comments below! 💬

Remember, sharing is caring! If you found this blog post helpful, don't hesitate to share it with your fellow tech enthusiasts. Spread the knowledge! 🤓💡

Happy coding! 👩‍💻👨‍💻