In this video, we solve LeetCode 196: Delete Duplicate Emails using SQL — a common interview question asked by top tech companies.
You'll learn how to:
Identify and filter duplicate email entries in a database
Understand key SQL concepts like self-joins and the USING clause in postgresql.
Write clean, readable, and efficient SQL for technical interviews.
Whether you're preparing for a FAANG SQL interview or brushing up your data cleaning skills, this tutorial will help you approach problems with confidence.
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