I have also enjoyed his blog. Here's another way to understand indexes by implementing them in a simple SQL database. This includes both storing/retrieving inde

I have also enjoyed his blog. Here's another way to understand indexes by implementing them in a simple SQL database. This includes both storing/retrieving indexed values and also deciding whether or not a query has an applicable index. https://notes.eatonphil.com/database-basics-indexes.html https://notes.eatonphil.com/database-basics-indexes.html