# Cumulative DAGs in Production Day 3 Lecture

> Cumulative DAGs are a complex yet powerful concept in data engineering, particularly within Apache Airflow. This lecture explores the debate between functional and efficient data engineering, focusing on cumulative table design and its implications for data duplication and maintenance. Participants…

- Web page: https://www.dataexpert.io/lesson/cumulative-dags-in-production-day-3-lecture-jan2025
- Program: [2025 New Year  Data Engineering Boot Camp starting January 6th](https://www.dataexpert.io/program/2025-new-year-data-engineering-boot-camp-starting-january-6th)
- Access: Requires enrollment in 2025 New Year  Data Engineering Boot Camp starting January 6th
- Length: 41 min video
- Skills: Data Modeling, ETL/ELT, Airflow, Data Warehousing
- Academy: DataExpert.io Academy

## About this lesson

Cumulative DAGs are a complex yet powerful concept in data engineering, particularly within Apache Airflow. This lecture explores the debate between functional and efficient data engineering, focusing on cumulative table design and its implications for data duplication and maintenance. Participants will learn about the trade-offs of cumulative designs, including their benefits for analytics and the challenges they pose for backfilling and managing historical data.

## Navigation

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