# TA Office Hour 5 (2025-06-17)

> This office hour session focuses on guiding students through an assignment related to Databricks and advanced Spark techniques. Participants learn about processing a tweets dataset, including data cleaning, creating fact and dimension tables, and performing broadcast joins. The discussion also cove…

- Web page: https://www.dataexpert.io/lesson/ta-office-hour-5-p736-l1152
- Access: Requires enrollment
- Skills: Data Modeling, ETL/ELT, Apache Spark
- Academy: DataExpert.io Academy

## About this lesson

This office hour session focuses on guiding students through an assignment related to Databricks and advanced Spark techniques. Participants learn about processing a tweets dataset, including data cleaning, creating fact and dimension tables, and performing broadcast joins. The discussion also covers defining tweet counts and managing historical data, making it beneficial for students seeking clarification on practical applications of data engineering concepts.