Apache Spark Python - Transformations - Problem Statements for Joins

This article provides a step-by-step guide on joining Data Frames in Python, specifically focusing on solving various problem statements using 2008 January air traffic data and airport codes. The article includes key concepts, hands-on tasks, and a summary to help readers understand and apply the concepts effectively.

Joining Data Frames with Different Types of Joins

In this concept, we will learn how to join data frames using different types of joins such as inner join, outer join, left join, and right join.

# Example of an inner join
result = pd.merge(df1, df2, on='key', how='inner')

Merging Data Frames on Multiple Keys

This concept covers the use of merging data frames based on multiple keys and handling duplicate key values.

# Example of merging based on multiple keys
result = pd.merge(df1, df2, on=['key1', 'key2'], how='inner')

Watch the video tutorial here

Hands-On Tasks

Here are some hands-on tasks that you can perform to practice joining data frames in Python:

  1. Task 1: Get the number of flights departed from each US airport.
  2. Task 2: Get the number of flights departed from each state.


In conclusion, joining data frames is a crucial aspect of data analysis and manipulation in Python. By mastering the concepts covered in this article and practicing the hands-on tasks, readers can enhance their skills and effectively work with data frames. Remember to engage with the community for further learning and support in your data analysis journey.