What is a Data Warehouse? (Database vs. Data Warehouse Explained)
techTFQ
Is a Data Warehouse just a "big database"? Not quite!
In today's video, we’re breaking down the fundamental differences between a Database (OLTP) and a Data Warehouse (OLAP). If you’ve ever wondered why massive companies like Netflix or major banks don’t just run their analytics on their main production database, this video is for you.
We use a simple library analogy to explain how these systems differ in purpose, structure, and scale. By the end of this lesson, you’ll understand how data flows from isolated databases into a centralized "Data Warehouse."
This video is taken from one of the chapters of my SQL Beginner course on SQLNest. If you want to learn other Data Warehousing, Data Modeling, Database, or SQL concepts in depth then check out my course below ????
https://sqlnest.com/course?tab=course
My Live SQL Bootcamp is back - the first one in over a year! 8 live sessions, Beginner to Advanced, starting Sept 5. Seats are limited ????
https://sqlnest.com/bootcamp/Live_SQL_Bootcamp_Beginner_to_Advanced
???? Timestamps:
0:00 – Intro
1:37 – What is a Data Warehouse? with example
4:12 – Difference 1: Type of Data
8:04 – Difference 2: How data is stored
11:22 – Example use...
In today's video, we’re breaking down the fundamental differences between a Database (OLTP) and a Data Warehouse (OLAP). If you’ve ever wondered why massive companies like Netflix or major banks don’t just run their analytics on their main production database, this video is for you.
We use a simple library analogy to explain how these systems differ in purpose, structure, and scale. By the end of this lesson, you’ll understand how data flows from isolated databases into a centralized "Data Warehouse."
This video is taken from one of the chapters of my SQL Beginner course on SQLNest. If you want to learn other Data Warehousing, Data Modeling, Database, or SQL concepts in depth then check out my course below ????
https://sqlnest.com/course?tab=course
My Live SQL Bootcamp is back - the first one in over a year! 8 live sessions, Beginner to Advanced, starting Sept 5. Seats are limited ????
https://sqlnest.com/bootcamp/Live_SQL_Bootcamp_Beginner_to_Advanced
???? Timestamps:
0:00 – Intro
1:37 – What is a Data Warehouse? with example
4:12 – Difference 1: Type of Data
8:04 – Difference 2: How data is stored
11:22 – Example use...
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