This post discusses the One Big Table (OBT) and Star Schema approaches in analytical data modeling. OBT simplifies the database structure by consolidating all data into a single table, making it easier to manage and query. Star Schema, on the other hand, leverages domain-driven design principles and maps entities and relationships to dimensions and foreign key relationships. The post also explores where the JOIN operation is executed and suggests using both OBT and star schema approaches for different use cases.

5m read timeFrom hubertdulay.substack.com
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Table of contents
What Is OBT?Star Schema and Domain Driven DesignOperational StorageWhere to do the JOINStar Schema AlternativeWhy not both?

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