SQL Interview Question - Data Analyst SQL Interview Question - Advanced SQL Interview Question
In this video, I explain the Overlapping Interval Paradox using a real world scenario and show you how to correctly calculate the total occupied time without overlaps.
This is one of the most common and tricky SQL interview questions for data analysts and most people get it wrong by double counting time.
You will learn:
How to handle overlapping time intervals in SQL
Why simple SUM logic fails
How to avoid double counting in SQL
Step by step solution using SQL window functions
How to solve real world problems like Gantt chart interval calculations
This is a must know concept if you are preparing for:
SQL interview questions
Data analyst interviews
Data science interviews
Real world analytics projects
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