Azure Cosmos DB Blog

Now Generally Available – Partial Document Update in Azure Cosmos DB

November 2, 2021 Nov 2, 2021 11/2/21

Check out the new partial document update feature for Azure Cosmos DB Core (SQL) API, announced at Microsoft Ignite. This feature makes it possible to use the Java, .NET, and Node.js SDKs to perform path-level updates to specific fields/properties in a single document without needing to perform a full document read-replace operation.

Use Indexes for blazing-fast queries on your API for MongoDB Data

October 6, 2021 Oct 6, 2021 10/6/21

Gahl Levy

What’s better than faster queries – how about an order of magnitude faster queries? That’s what indexes do in the API for MongoDB. Let’s dive into the three things that are most important for MongoDB developers to know about indexing when building their applications on the API for MongoDB.

Planning Azure Cosmos DB capacity using vCores, vCPUs, and request rates

September 28, 2021 Sep 28, 2021 09/28/21

Andy Feldman

How to use the information you know about your database clusters to estimate the provisioned throughput request units you'll need when migrating NoSQL data to Azure Cosmos DB and avoid over-provisioning or overpaying

New and recently updated documentation for Azure Cosmos DB

September 23, 2021 Sep 23, 2021 09/23/21

Nikisha Reyes-Grange

What's new in docs? Explore the technical documentation that's been recently published and updated for Azure Cosmos DB.

Enhance local development experience using the Azure Cosmos DB Linux emulator and VS Code

September 21, 2021 Sep 21, 2021 09/21/21

Abhishek Gupta

Develop your next app database locally using the Azure Cosmos DB Linux emulator on Docker (preview) with Visual Studio Code. This post includes a sample with GitHub repository and a step-by-step video.

Getting started with Azure Cosmos DB – end to end example, part 2

September 14, 2021 Sep 14, 2021 09/14/21

Cyrille Visser

The second of a two-part series about creating your first Azure Cosmos DB implementation. Learn how to improve performance by optimizing queries and monitoring your database account.

Getting started with Azure Cosmos DB – end to end example

September 9, 2021 Sep 9, 2021 09/9/21

Cyrille Visser

Understand how to create your first Azure Cosmos DB implementation with this two-part series. From when and why to choose a NoSQL database to creating containers and selecting an API, follow this end-to-end example to walk through the steps you'll take to get started.

Cost Optimized Metrics through Log Analytics

August 23, 2021 Aug 23, 2021 08/23/21

Abinav Rameesh

Azure Cosmos DB is designed for high throughput and low latency workloads, with the ability to serve millions of requests per second and billions of requests a day. In addition to seeking a scalable database that can serve massive volumes of traffic, users also look for granular server-side metrics for monitoring the health and performance of ...

Now Generally Available – Azure Cosmos DB Kafka Source & Sink Connectors

August 13, 2021 Aug 13, 2021 08/13/21

Abinav Rameesh

Explore the architecture of the source and sink Apache Kafka Connectors for Azure Cosmos DB along with their popular areas of usage.

Now in private preview: optimize your data distribution with hierarchical partition keys

August 12, 2021 Aug 12, 2021 08/12/21

Deborah Chen

Hierarchical partition keys are now available in private preview for the Azure Cosmos DB Core (SQL) API. With hierarchical partition keys, also known as sub-partitioning, you can now natively partition your container with up to three levels of partition keys. This enables more optimal partitioning strategies for multi-tenant scenarios or ...