session_solutions

Session 9 reference solutions

This folder contains reference solution code provided by Stelios.

Write your own code first. Use these files only to check your approach after you complete each task.

Files

• exercise-09-01.py: Part 1 Spark CSV loading and SQL view solution
• exercise-09-02.py: Part 2 derived columns and time features solution
• exercise-09-03.py: Part 3 ranked service summary solution
• exercise-09-homework.md: Homework reference notes
• session-09-solutions-colab.ipynb: Colab-ready notebook that runs the Session 9 solution workflow end to end

Notes

• Quiz content is intentionally excluded.
• The tutorial code can be run in Google Colab or locally.
• Local scripts should be run from the session9 folder.