---
title: "Discussion on \"How Relational Database Constraints Work and Why They're Important\" | Hashnode"
description: "Discussion on \"How Relational Database Constraints Work and Why They're Important\". Databases are a crucial tool because they store the data that power our day-to-day lives. Databases are designed to match the real world as much as possible, so they store data of different forms, about different things, just as it is in the world.\nT..."
url: "https://hashnode.com/posts/how-relational-database-constraints-work-and-why-theyre-important/69681d224dcb07c08e435626"
---

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# [How Relational Database Constraints Work and Why They're Important](https://freecodecamp.org/news/how-relational-database-constraints-work-and-why-theyre-important?utm_source=hashnode&utm_medium=feed)

Databases are a crucial tool because they store the data that power our day-to-day lives. Databases are designed to match the real world as much as possible, so they store data of different forms, about different things, just as it is in the world. T...

Jan 14 · 12 min read · freecodecamp.org  
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-   [#databases](https://hashnode.com/tag/databases)
-   [#relational-database](https://hashnode.com/tag/relational-database)

## Written by

[Zubair Idris Aweda](https://hashnode.com/@Zubs)

@Zubs · Wolverhampton, United Kingdom

  
[View profile](https://hashnode.com/@Zubs)

Software Engineer. Technical Writer.

Experienced Software Engineer with a demonstrated history of building great software. Skilled in PHP and JavaScript.

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