Using Joins and Group Bys the right way for data warehousing
Start Data Engineering
JUNE 10, 2025
1. Introduction 2. Joins & Group bys are two of the most commonly used operations in data warehousing 2.1. Joins are used to create denormalized dimension tables & to enrich fact tables with dimensions for reporting 2.1.1. When to use joins 2.1.2. How to use joins 2.1.3. Things to watch out for when joining 2.2. Group bys are the cornerstone of reporting 2.
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