Скачать или смотреть Big 4 Consulting Interview Questions (Part 4): Master Join, GroupBy, DateFormat & Aggregation

Welcome to Part 4 of our Big 4 Consulting Interview Prep series! 🚀 In this episode, we dive deep into some of the most commonly asked PySpark functions in Big 4 consulting firm interviews, including join, groupBy, date formatting, and aggregation functions.

What you’ll learn in this video:

How to use join to merge datasets effectively and handle real-world data relationships.
Mastering groupBy for grouping and summarizing data with ease.
Applying date format functions to manipulate and standardize date/time data.
Practical use of aggregate functions like sum, avg, max, and more to showcase your analytical skills.
Real-world examples to solve interview-style questions confidently.

This tutorial is tailored for data engineering and analytics roles, ensuring you're well-prepared for your Big 4 interview journey.

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