SQL Interview Question and Answer #3 | With Practical Scenario | InsightEdgeLabs

Welcome back to InsightEdge Labs!

In this video, we’re going to solve one of the most commonly asked SQL interview questions, and we’ll do it using a real-time business scenario.

Goal is to Extract the unique list of cities from the Property table using valid SQL methods — without using DISTINCT, CTE, or window functions.

❌ DISTINCT
❌ CTE
❌ Window Functions

You’ll learn multiple real-world approaches, including:

✔ Using GROUP BY to identify unique values
✔ Using correlated subqueries
✔ Why these methods work in SQL interviews
✔ How to explain this logic to your interviewer clearly

This question is frequently asked in Data Analyst, SQL Developer, and BI Analyst interviews — and mastering it will give you a strong advantage.

Timestamps
0:00 — Introduction
0:30 — Scenario Explained
1:41 — Practical Implementation
5:20 — Thank you

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