Azure Cosmos DB Documentation
Azure Cosmos DB is a globally distributed, multi-model database service that supports document, key-value, wide-column, and graph databases. Learn how to use Azure Cosmos DB with our quickstarts, tutorials, and samples.
Concepts
Learn about global distribution, partitioning, 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.
MongoDB API
Use the MongoDB API if you are migrating data from a MongoDB database 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.
Cassandra API
Use the Cassandra API if you are migrating data from Cassandra to Azure Cosmos DB's fully managed service.
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 | |||||||
| MongoDB API | |||||||
| 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