Azure Cosmos DB Blog

The latest news, updates and technical insights from the Azure Cosmos DB team

Now Generally Available – Partial Document Update in Azure Cosmos DB

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.

Cost Optimized Metrics through Log Analytics

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

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 ...