# TA Office Hour 3 (2025-01-21)

> Office hours provide an interactive platform to discuss homework assignments and clarify concepts in data engineering. This session focused on Homework 2, covering the integration of the Polygon API with Apache Airflow for data processing. Key topics included the setup of data pipelines, the use of…

- Web page: https://www.dataexpert.io/lesson/ta-office-hour-3-jan2025-p736-l768
- Access: Requires enrollment
- Length: 1 h 3 min video
- Skills: SQL, Data Modeling, ETL/ELT, Airflow
- Academy: DataExpert.io Academy

## About this lesson

Office hours provide an interactive platform to discuss homework assignments and clarify concepts in data engineering. This session focused on Homework 2, covering the integration of the Polygon API with Apache Airflow for data processing. Key topics included the setup of data pipelines, the use of SQL and Python for data quality checks, and the implementation of cumulative tables. Participants also explored troubleshooting techniques and best practices for using Airflow effectively.