Data Warehouse Explained in 4 minutes

In short, a Data Warehouse centralizes data into a Single Source of Truth, optimized for OLAP analysis. Using BI tools, OLAP cubes, and Data Marts, teams can leverage scalable platforms like Google BigQuery or AWS Redshift for fast, strategic decisions.

00:00 What is a Data Warehouse?
01:00 The role of ETL
01:20 Data Warehouse, the data repository
02:20 OLTP vs OLAP
03:09 The data cube
03:40 Data Marts

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