Lesson 06.2
Normalization vs denormalization & projections
Normalization gives each fact one authoritative home, while denormalization and projections copy or reshape facts to make important reads faster at the cost of extra writes and freshness work.
One price shown in many saved baskets
Ava changes a cookie price. Ben checks how many saved baskets contain an old copied price.
In this lesson you'll
- 1Follow one run and learn how to read the picture
- 2Predict what changes before revealing the result
- 3Compare the choices and help Ava get a basket with the current price without too much waiting