Hello. This is my digital garden. It is a place where I learn in public.

I take notes as I study new subjects. Each note explains one idea. Notes link to each other, so you can follow an idea from one place to the next.

What you will find here

• Concepts. Short notes that explain one idea each.
• Topics. Hubs that group the notes about one subject, for example databases or statistics.

Start here

I am now learning how PostgreSQL locks work. Read Row Lock Modes first. Then read Wait Policies and Table Lock Modes.

How to read this site

Start with the notes below. Follow the links inside the notes. Use the search box to find a word. Use the graph view to see how the notes connect.

About the notes

These notes are not finished. I change them when I learn more. If a note is wrong, the note is wrong because I was wrong when I wrote it.