Implementing On Delete Cascade in SQL скачать в хорошем качестве

Implementing On Delete Cascade in SQL

The *ON DELETE CASCADE* feature in SQL is used to *automatically delete related records* in child tables when a record in the parent table is deleted. This video explains how *foreign key constraints with ON DELETE CASCADE* work, along with *practical examples* and best practices. In this tutorial, you will learn: What is *ON DELETE CASCADE* in SQL How it works with *foreign key relationships* Syntax of *ON DELETE CASCADE* Difference between *CASCADE, SET NULL, and RESTRICT* Examples with *parent and child tables* Common mistakes to avoid Interview questions related to foreign keys and cascading deletes *ON DELETE CASCADE* is essential for maintaining *referential integrity* in relational databases and is frequently asked in **SQL interviews, DBMS exams, and real-world projects**. This video is ideal for: *Beginners learning SQL* *Students preparing for DBMS exams* *Freshers preparing for interviews* Professionals revising *foreign key concepts* 📌 Topics include: ON DELETE CASCADE SQL, foreign key cascade delete, referential integrity SQL, SQL constraints, SQL foreign keys, cascade vs set null vs restrict, DBMS interview questions Subscribe to *Learn SQL* for **step-by-step SQL tutorials, practical examples, and interview-focused database concepts**. *Keywords:* ON DELETE CASCADE SQL, SQL foreign key cascade, SQL referential integrity, cascade delete SQL, DBMS foreign key, SQL interview questions, SQL for beginners