---
title: "Discussion on \"GUID or Varchar(36)?\" | Hashnode"
description: "Discussion on \"GUID or Varchar(36)?\". While working on an application which had a foreign key GUID reference, we had to change the implementation for that field to accept a string. Then we came across the question as to whether GUIDs or a Varchar(36) field would perform better?  \nFirst o..."
url: "https://hashnode.com/posts/guid-or-varchar36/6326e7d67ae3b59ef00654b6"
---

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# [GUID or Varchar(36)?](https://emmti.com/guid-or-varchar36?utm_source=hashnode&utm_medium=feed)

While working on an application which had a foreign key GUID reference, we had to change the implementation for that field to accept a string. Then we came across the question as to whether GUIDs or a Varchar(36) field would perform better? First o...

Aug 27, 2015 · 2 min read · emmti.com  
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-   [#sql](https://hashnode.com/tag/sql)
-   [#guid](https://hashnode.com/tag/guid)
-   [#varchar](https://hashnode.com/tag/varchar)

## Written by

[Emmanuel Tissera](https://hashnode.com/@emmti)

@emmti · Melbourne, Australia

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

Nuts about .NET, CMS, DXP & Headless.

Technical Director at Luminary. Umbraco 3x MVP.

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