Snir David My name is Snir David.
I'm a proffessional developer delivering great software to production.
I post concise knowledge bits on my account Data warehouse schema design - dimensional modeling and star schema 24/08/2020

Introduction to data warehouse schema design: In this talk, I walk through the basics of dimensional design using the kimball group approach.

Amongst other things, I cover:

  • OLAP systems vs OLTP systems
  • Third normal form of operational DB
  • What is a dimension
  • What is a fact
  • Star schema
  • Dimension grain
  • Surrogate keys
  • Slowly changing dimensions