2. OLTP vs OLAP and the Modern Data Stack
Billing DB vs analytics warehouse — donhi garaje. Modern data stack simple map.
What you will learn in this chapter
- OLTP vs OLAP in plain English
- Why copy data out of the app DB
- Warehouse / lakehouse words
- Modern stack sketch
- Practice
Fictional labs
India retail stories (Raja Traders Nagpur, Mauli Dairy Pune) are fictional. Spark samples are tiny/local — no live cluster claimed.
Concepts in this chapter
- 2.1OLTP vs OLAP
- 2.2Why Copy Out of the App DB
- 2.3Warehouse and Lakehouse Words
- 2.4Practice, Tip and Close
The chapter recap is at the end of the last concept page.