---
title: "Comment by Ali Mtulu on \"A Quick Guide to Keys, JOINs, and Referential Integrity in SQL Databases.\" | Hashnode"
description: "Awesome 👍"
url: "https://hashnode.com/posts/a-quick-guide-to-keys-joins-and-referential-integrity-in-sql-databases/645f5c2d0ba4d870625f7b77/comment/645f6a554824b288fcf11343"
---

[Discussion](https://hashnode.com/posts/a-quick-guide-to-keys-joins-and-referential-integrity-in-sql-databases/645f5c2d0ba4d870625f7b77)

Comment [A Quick Guide to Keys, JOINs, and Referential Integrity in SQL Databases.](https://hashnode.com/posts/a-quick-guide-to-keys-joins-and-referential-integrity-in-sql-databases/645f5c2d0ba4d870625f7b77)

[Ali Mtulu](https://hashnode.com/@Alitheanalyst)

[May 13, 2023](https://hashnode.com/posts/a-quick-guide-to-keys-joins-and-referential-integrity-in-sql-databases/645f5c2d0ba4d870625f7b77/comment/645f6a554824b288fcf11343)

Awesome 👍

[Humphrey Kinoti](https://hashnode.com/@HumphreyKn)

[May 13, 2023](https://hashnode.com/posts/a-quick-guide-to-keys-joins-and-referential-integrity-in-sql-databases/645f5c2d0ba4d870625f7b77/comment/645f6a554824b288fcf11343#reply-645f6b744824b288fcf1137b)

Thanks brother