Azure Cosmos DB documentation

Azure Cosmos DB - Fast NoSQL database with SLA-backed speed and availability, automatic and instant scalability, and open-source APIs for MongoDB and Cassandra.

Concept

NoSQL vs relational databases

Concept

Introduction to Azure Cosmos DB

Concept

Choose an API in Azure Cosmos DB

How-To Guide

Create an Azure Cosmos DB account

Learn

Explore Azure Cosmos DB

video

Data modeling - improve your application's speed and performance

Azure Cosmos DB

Explore core concepts

• Azure Cosmos DB resource model
• Distribute data globally
• Partitioning
• Throughput & request units

Model your data

• Data modeling and partitioning
• Azure Cosmos DB service quotas

Analytics with Azure Synapse Link

• Synapse Link for Azure Cosmos DB
• Azure Cosmos DB Analytical Store
• Synapse Link use cases
• Configure Azure Synapse Link

APIs

SQL/Core API

• SQL queries
• Stored procedures, triggers, UDFs
• Model document data
• See more >

Cassandra API

• Wire protocol support
• Partitioning
• Secondary indexing
• See more >

MongoDB API

• Supported features and syntax
• Mapping consistency levels
• Extension commands
• See more >

Gremlin API

• Wire protocol support
• Graph data modeling
• Import graph data
• See more >

Table API

• Build apps with Table API
• Find request unit charge
• FAQ
• See more >

Data Migration

Migration options

• Data migration tool – SQL API
• CQL shell, Spark – Cassandra API
• Azure Database Migration Service – MongoDB API
• AzCopy, Data migration tool – Table API

Migration guides

• Oracle DB to Cosmos DB SQL API using Striim
• Oracle DB to Cosmos DB Cassandra API using Striim
• Oracle DB to Cosmos DB Cassandra API using Arcion
• Apache Cassandra to Cosmos DB using Arcion
• Migrate 100's TBs of data