Azure Cosmos DB Documentation
Azure Cosmos DB is a fully managed database service with turnkey global distribution and transparent multi-master replication. You can run globally distributed, low-latency operational and analytics workloads and AI on transactional data within your database. Learn how to use Azure Cosmos DB with our quickstarts, tutorials, and samples.
Concepts
Learn about global distribution, partitioning, provisioned throughput, indexing, and other concepts that apply to all of the Azure Cosmos DB APIs.
SQL API
Use the SQL API if you're building a new non-relational document database and want to query using familiar SQL syntax.
Gremlin API
Use the Gremlin API if you're building a graph database to model and traverse relationships among entities.
Azure Cosmos DB's API for MongoDB
Use the Azure Cosmos DB's API for MongoDB if you are migrating data from a MongoDB database to Azure Cosmos DB's fully managed service.
Cassandra API
Use the Cassandra API if you are migrating data from Cassandra to Azure Cosmos DB's fully managed service.
Table API
Use the Table API if you are migrating data from Azure Table storage to Azure Cosmos DB's premium table offering.
Built-in analytics with Apache Spark
Use the built-in support for Apache Spark to run analytics on the data stored in an Azure Cosmos account.
Change feed
Perform real-time analytics with change feed by reading the sorted list of documents within an Azure Cosmos DB container in the order in which they were modified.
Etcd API
The Etcd API allows you to use Azure Cosmos DB as the backend store for Azure Kubernetes.
5-Minute Quickstarts
Learn how to use Azure Cosmos DB to create a globally distributed database using one of the following quickstarts for the multi-model APIs:
 Java |  .NET |  Node.js |  Python |  Gremlin |  Go |  Xamarin | |
|---|---|---|---|---|---|---|---|
| SQL API | |||||||
| API for MongoDB | |||||||
| Gremlin API | |||||||
| Table API | |||||||
| Cassandra API |
Step-by-Step Tutorials
Learn how to develop apps using Azure Cosmos DB:
- Develop an app with Azure Cosmos DB: SQL | MongoDB | Table | Gremlin | Cassandra
- Migrate data to Azure Cosmos DB: SQL | MongoDB | Table | Cassandra
- Query data with Azure Cosmos DB: SQL | MongoDB | Table | Gremlin
- Global database replication with Azure Cosmos DB: SQL | MongoDB | Table
- Develop your application locally using the emulator
- Create an HTTP Trigger with an Azure Cosmos DB input binding
