Last updated on March 20, 2023
Azure SQL Database |
Azure Cosmos DB |
|
Type of Database |
Relational database |
NoSQL database |
Features |
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 |
|
Unlimited storage per database and container. |
Availability |
SQL database – 99.995% availability SQL managed instance and SQL virtual machine – 99.99% availability |
Single-region – 99.99% Multi-region – 99.999% |
Backups |
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. |
Encryption |
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). |
Maintenance |
Supports serverless compute tier for Azure SQL Database. |
Supports serverless containers that can serve thousands of requests per second. |
Pricing |
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:
https://docs.microsoft.com/en-us/azure/azure-sql/azure-sql-iaas-vs-paas-what-is-overview
https://docs.microsoft.com/en-us/azure/cosmos-db/relational-nosql
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