---
title: "Discussion on \"dbt Series #5: Get start with Data Constraints\" | Hashnode"
description: "Discussion on \"dbt Series #5: Get start with Data Constraints\". Learn how to define and enforce data constraints in dbt for PostgreSQL. Covers NOT NULL, primary keys, foreign keys, unique, check  constraints."
url: "https://hashnode.com/posts/dbt-series-5-get-start-with-data-constraints/6a6c6af61d0a7b87abc58d28"
---

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# [dbt Series #5: Get start with Data Constraints](https://ajay990.hashnode.dev/dbt-series-5-get-start-with-data-constraints?utm_source=hashnode&utm_medium=feed)

Learn how to define and enforce data constraints in dbt for PostgreSQL. Covers NOT NULL, primary keys, foreign keys, unique, check constraints.

Jul 31 · 9 min read · ajay990.hashnode.dev  
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-   [#dbt](https://hashnode.com/tag/dbt)
-   [#quality](https://hashnode.com/tag/quality)
-   [#database](https://hashnode.com/tag/database)
-   [#constraints](https://hashnode.com/tag/constraints)
-   [#postgresql](https://hashnode.com/tag/postgresql)

## Written by

[ajay singh rathore](https://hashnode.com/@ajayrathore)

@ajayrathore · Bengaluru, India

  
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