Ends in

SITEWIDE SALE! $3 OFF All Reviewers!

Azure SQL Database vs Cosmos DB

Home » Azure Cheat Sheets » Azure SQL Database vs Cosmos DB

Azure SQL Database vs Cosmos DB

Azure SQL Database

Azure Cosmos DB

Type of Database

Relational database

NoSQL database


Has several SQL deployment options for different kinds of workloads – SQL databases, SQL managed instances, SQL virtual machines.

Delivers single-digit millisecond response times and instant scalability.

Storage Size

  • 100 TB for SQL database

  • 8 TB for SQL managed instance

  • 256 TB for SQL virtual machine

Unlimited storage per database and container.


SQL database – 99.995% availability

SQL managed instance and SQL virtual machine – 99.99% availability

Single-region – 99.99%

Multi-region – 99.999%


With long-term backup retention policy, database backups are automatically retained in separate Azure Blob storage containers (up to 10 years).

Periodic backup mode (default) – the backup is created at a periodic interval and the data can be restored by creating a request with the support team.

Continuous backup mode – allows you to restore your data to any point of time within the last 30 days.


Supports encryption at rest for Microsoft-managed service side and client-side encryption.

Supports Transparent Data Encryption for server encryption.

The Azure SQL Database supports RSA 2048-bit customer-managed keys in Azure Key Vault.

CosmosDB encrypts data at rest and the keys are managed by Microsoft. You can also use your own encryption keys (customer-managed keys).


Supports serverless compute tier for Azure SQL Database.

Supports serverless containers that can serve thousands of requests per second.


The resources are billed hourly at a fixed rate based on the service tier and compute size you choose.

The cost of all database operations is normalized and expressed as request units (RU).

Specific billing options for each database operation models: Provisioned Throughput and Serverless.

Use cases

Azure SQL is based on SQL Server engine, you can easily migrate applications and continue to use the tools, languages, and resources that you’re familiar with.

Azure Cosmos DB is used for web, mobile, gaming, and IoT application that needs to handle massive amounts of data, reads, and writes at a global scale.


Azure SQL Database vs Cosmos DB Resources:


Tutorials Dojo portal

Enroll Now – Our AWS Certification Exam Reviewers

AWS Practice Exams Tutorials Dojo

FREE AWS Exam Readiness Digital Courses

Tutorials dojo strip

Enroll Now – Our Azure Certification Exam Reviewers

azure reviewers tutorials dojo

Enroll Now – Our Google Cloud Certification Exam Reviewers

Tutorials Dojo Exam Study Guide eBooks

tutorials dojo study guide eBook

Subscribe to our YouTube Channel

Tutorials Dojo YouTube Channel

FREE Intro to Cloud Computing for Beginners

FREE AWS, Azure, GCP Practice Test Samplers

Recent Posts

AWS, Azure, and GCP Certifications are consistently among the top-paying IT certifications in the world, considering that most companies have now shifted to the cloud. Earn over $150,000 per year with an AWS, Azure, or GCP certification!

Follow us on LinkedIn, YouTube, Facebook, or join our Slack study group. More importantly, answer as many practice exams as you can to help increase your chances of passing your certification exams on your first try!

View Our AWS, Azure, and GCP Exam Reviewers Check out our FREE courses

Our Community

passing rate
Around 95-98% of our students pass the AWS Certification exams after training with our courses.
Over 200k enrollees choose Tutorials Dojo in preparing for their AWS Certification exams.
Our courses are highly rated by our enrollees from all over the world.

What our students say about us?