Your question is PL/SQL ETL and Warehousing. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Describe your experience using PL/SQL stored procedures for ETL in a data warehousing environment, including how you design star or snowflake schemas and write SQL queries with window functions for real analytics scenarios.