A simple guide to binning data in SQL

Harness the Power of SQL: Learn How to Categorize and Analyze Your Data Efficiently Using Binning Techniques

John Vastola
7 min readMay 25, 2023

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The above plot is a heatmap, which is essentially a 2D histogram. Based on data sorted into bins along both dimensions, resulting in a grid of bins.

If you’ve ever found yourself swimming in an ocean of data, struggling to make sense of the waves of numbers and categories, then you’ve come to the right place. Today, we’re going to talk about a lifesaver in the sea of data: binning, and specifically, how to do it in SQL. Now, you might be thinking, “Binning? What’s that got to do with data?” Well, I’m glad you asked!

When dealing with large amounts of data, it’s often not about finding the perfect categorization or model, but about finding one that’s useful and meaningful for our purposes. That’s where binning comes in. It’s all about finding those useful categories, or ‘bins’, in our data.

In the world of data analysis, SQL reigns supreme. It’s a versatile tool, capable of handling enormous data sets and complex queries with ease. But it’s not just about retrieving data — SQL also has powerful data transformation capabilities, one of which is binning.

But enough of the preamble, let’s dive into what you can expect from this guide:

  • Understanding the concept of binning and why it’s so important in data analysis

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John Vastola
John Vastola

Written by John Vastola

Data scientist, AI enthusiast, and self-help writer sharing insights on using data science and AI for good. johnvastola.medium.com/membership

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