How to Find and Remove Duplicates with SQL

An introduction to Data Cleaning

Whether you are a Data Engineer, Analyst, or Scientist, maybe even in software development, it is crucial to ensure the quality of your data before using it.

While this may be obvious, I had the experience in a previous job at Akeneo (an open-source PIM vendor) of losing all credibility with my manager for presenting results on data without having done the necessary checks.