Exam DP-300: Administering Relational Databases on Microsoft Azure

If you find any source then lemme know, that would be appreciated.

Hi sir MVPromise 

You can learn here different database instance available based on your preference :

https://azure.microsoft.com/en-us/product-categories/databases/


https://docs.microsoft.com/en-us/azure/architecture/guide/technology-choices/data-store-overview 

Here is different certification that you can achieve with great documentations , i have include 2 link that will guide you to relational database learning path. You can customize your https://docs.microsoft.com/en-us/learn/browse/ also with your own preferences.

https://docs.microsoft.com/en-us/learn/certifications/browse/?term=300

https://docs.microsoft.com/en-us/learn/browse/?roles=data-analyst%2Cdata-engineer%2Cdata-scientist&resource_type=learning%20path

Enjoy!