Showing results for April 2025 - Azure Cosmos DB Blog

If you're new to Azure Cosmos DB and looking to build applications with Python, you're in the right place. I’ve created a four-part video series designed to take you from the basics to practical, real-world querying techniques—no prior experience required. Whether you’re setting up your first database, learning how to model your data, or optimizing...

On April 15, 2025, developers from around the world came together for Azure Cosmos DB Conf 2025—a free virtual event co-hosted by Microsoft and the vibrant Azure Cosmos DB community. From early-morning keynotes to lightning talks and live demos, the event was packed with fresh insights, expert guidance, and real-world examples of how developers are...

Introduction In the first part of our series on Azure Cosmos DB Vector Search with DiskANN, we explored the fundamentals of vector indexing and search capabilities using Azure Cosmos DB for NoSQL and demonstrated a few early performance and cost characteristics. In Part 2, we’ll demonstrate how to scale to 1 billion vector datasets, while maintain...

You asked—we delivered! Users can now manually select the region Data Explorer sends requests to! When you use Entra Authentication with NoSQL accounts, you can now enable the Region Selection option in settings. This new capability gives you precise control over where your requests are sent, helping you test, troubleshoot, and optimize performance...

Azure Cosmos DB’s change feed provides a view of changes to data in your container. This enables patterns like event sourcing, auditing and synchronizing downstream systems. Change feed can be read in real time or on demand, giving you the most flexibility for processing and reprocessing changes. Change feed is available in two modes, latest ver...

We are excited to introduce Power BI integration for vCore-based Azure Cosmos DB for MongoDB. This certified solution brings your operational data to life through real-time dashboards, directly in the Power BI interface that your analytics teams already love.  You can now connect Power BI Desktop directly to your vCore-based Azure Cosmos DB for ...

In applications such as personalized recommendations and scientific research, accurately identifying the closest data points to a given query is crucial. Traditional methods like Approximate Nearest Neighbor (ANN) search offer faster retrieval times by approximating results but may sacrifice accuracy, leading to potential errors in scenarios where ...