Скачать или смотреть SQL Interview Question- On Delete Cascade YT

🚀 Title: ON DELETE CASCADE in SQL Explained (With Example) | Foreign Key Constraints

📌 Description:

In this video, we’ll break down ON DELETE CASCADE in SQL—a powerful foreign key constraint that automatically deletes related child records when a parent record is removed.

🔹 What You’ll Learn:
✔ What is ON DELETE CASCADE?
✔ How does it work in MySQL, PostgreSQL, and SQL Server?
✔ Practical example with Customers & Orders tables
✔ When to use (and when NOT to use) CASCADE
✔ Alternatives (SET NULL, NO ACTION, SET DEFAULT)
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