SQL JOINs Explained | INNER, LEFT, RIGHT, FULL OUTER JOIN with Real Examples

In this video you will understand all 4 types of SQL JOINs with real table data and live queries.

We use a Customers and Orders table to show exactly what happens to your rows in each JOIN type.

What we cover:
✅ INNER JOIN — only matched rows from both tables
✅ LEFT JOIN — all customers even with no orders
✅ LEFT JOIN trick — find customers who never placed an order
✅ RIGHT JOIN — and why you should always prefer LEFT JOIN
✅ FULL OUTER JOIN — and the MySQL workaround using UNION
✅ Side by side comparison of all 4 JOINs
✅ Interview trap — the most common mistake candidates make

This is the complete JOIN guide you need before any SQL interview.

SQL Query used in the video : https://www.careerswitchhelp.com/2026/05/joins-in-sql-query-to-practice.html

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Видео SQL JOINs Explained | INNER, LEFT, RIGHT, FULL OUTER JOIN with Real Examples канала Interview Questions - AI