AWS RDS vs Azure SQL Database

July 09, 2021

AWS RDS vs Azure SQL Database: Let's compare!

When it comes to storing data in the cloud, Amazon Web Services (AWS) and Microsoft Azure are two of the biggest players in the game. AWS offers a service called RDS (Relational Database Service), while Azure offers its own equivalent called Azure SQL Database. But how do these two services stack up against each other in terms of user experience (UX)?

Pricing

A significant factor when it comes to cloud services is pricing. AWS offers RDS with three billing models, which are: On-demand, Reserved instances, and Spot instances. Comparing the On-demand pricing model, AWS RDS cheapest starting instance is the "db.t3.micro" instance which costs about $0.0095/hour or $6.87/month. Interestingly, Azure SQL database offers a single pricing model, where you’re billed according to the amount of resources used per hour. Using this pricing model, the cheapest starting instance is a "Basic" instance, which costs $0.0075/hour, or $5.4/month. Azure SQL database is, thus, cheaper than AWS RDS for a basic instance. That being said, one should consider that different use cases may require different configurations, so the actual costs may vary significantly.

Performance

Another important consideration in user experience is performance. The performance of a cloud database can determine the speed and responsiveness of an application. In terms of performance, both AWS RDS and Azure SQL Database come with impressive response times. In terms of benchmarks, AWS RDS shows that it can reach 35k IOPS (Input/Output Operations per Second) while Azure SQL Database offers 14k IOPS. It's worth noting that AWS offers more latency points than Azure, and thus could give an overall better responsiveness experience.

Features

Features are another critical aspect when it comes to comparing these services. AWS RDS offers support for six database engines: Amazon Aurora, PostgreSQL, MySQL, MariaDB, Oracle Database, and Microsoft SQL Server. Azure SQL Database offers support for four database engines: SQL Server, PostgreSQL, MySQL, and MariaDB. However, there is a significant limitation with regards to support for Oracle Database since it is only available on AWS.

Ease of Use

Lastly, let's talk about ease of use. Both AWS RDS and Azure SQL Database offer similar functionality, but AWS RDS has had more time to develop their product. The AWS Management Console is user-friendly, and the service’s documentation thoroughly covers all aspects of RDS. Azure SQL Database has an informative user interface, but there is a considerable learning curve for management purposes.

Conclusion

In summary, when it comes to user experience, AWS RDS and Azure SQL Database offer overall similar functionality. Azure SQL database might be cheaper for some use cases, but AWS RDS offers more options in terms of database engines, so it reigns supreme in that aspect. In terms of ease of use, both services have their pros and cons, but AWS RDS has a slight upper hand in terms of interface design and management. In terms of overall performance, AWS RDS presents a quicker and more responsive database but comes with a higher price tag in some instances.

In conclusion, the best choice between the two services should be based on your specific use case, budget, and familiarity with either AWS or Azure.

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