I’m obsessed with patterns.
They help you build on the combined experience of practitioners and codify best practices that have been battle-tested in the real world. Every pattern deals with a specific, recurring problem in the domain and provides proven solutions.
When experts work on a particular problem, it’s unusual for them to tackle it by creating new solutions. They often recall similar problems they (or others) have already solved and reuse the essence of the solution. That essence is codified as a pattern.
Who am I
I’ve been writing SQL for ~15 years. I’ve seen and written hundreds of thousands of lines of code. Over time I noticed a set of patterns and best practices I always come back to when writing queries. These patterns made my code more efficient, easier to understand and a breeze to maintain.
This page represents a collection of various SQL Patterns I have learned over a long career in data that I continue to find useful in my day to day work.