Azure Cosmos DB Blog
The latest news, updates and technical insights from the Azure Cosmos DB team
Featured posts
Azure Cosmos DB Shines at Microsoft Ignite 2024!
Microsoft Ignite 2024 took over the Windy City this week, bringing with it new technological innovation and exciting product announcements aplenty! If you m...
New Vector Search, Full Text Search, and Hybrid Search Features in Azure Cosmos DB for NoSQL
We’re excited to announce several new features and advancements for search and retrieval functionalities in Azure Cosmos DB for NoSQL including: ...
Latest posts
Azure Cosmos DB at Microsoft Build 2022 Review – Episode 45
Welcome back!  We hope you enjoyed all the content and updates from the 2022 edition of Microsoft Build. Developers were able to watch and virtually attend over 500 different live sessions covering topics ranging from Java, Kubernetes, and Azure Cosmos DB, and more! Check out the video below for the full recap on the new and exciting features we announced for Azure Cosmos DB at this year’s Build. In this episode of Azure Cosmos DB Live Mark and his guests from the Azure Cosmos DB Program Management team will discuss and recap all the new announcements around Azure Cosmos DB at the 2022 edition of Microsoft Bu...
Simplified Write and Read Paths in the Azure Cosmos DB Cassandra API
Azure Cosmos DB is a fully managed service which can be used as a backing data store for applications using Apache Cassandra, using the API for Cassandra. Built on top of Azure Cosmos DB, the Cassandra API provides scale, performance and availability guarantees while eliminating the operational overhead needed to manage Cassandra data. In this blog post, we dive into what goes on behind the scenes when read and write requests are sent to a Cassandra API endpoint. By delving into the details, we list the various components that are fully managed and optimized by the service and no longer require fine grained us...
Announced at Microsoft Build: New features for scalable, cost-effective application development
Microsoft Build starts today and features exciting announcements about Azure Cosmos DB, along with demonstrations of new features and interactive sessions with members of our product team. We hope you’re able to join us live or on-demand. New features for developers to build and deploy scalable applications Azure Cosmos DB has been the database of choice for cloud-native app development on Azure since its launch at Microsoft Build in 2017. Developers now have more ways to dev/test free with Azure Cosmos DB. MongoDB data is now supported in public preview by the desktop Azure Cosmos DB Emulator for Linux, and t...
Watch Now! Azure Cosmos DB Essentials Season 3
Season 3 is finally here! Explore and dive into the diverse types of architectures our customers use to build lightweight IoT & real-time telemetry applications by leveraging Azure Cosmos DB. Mustafa Branch and Mark Brown walkthrough use case diagrams, explain how data flows throughout the cloud application architecture, and explore the relevant Azure Cosmos DB features and capabilities for this use case. Azure Cosmos DB Data Ingestion Azure Cosmos DB has the capability to ingest substantial amounts of data to support your applications by leveraging the following capabilities: ...
Azure Cosmos DB Live TV Episode 43 – Data Modeling for the Relational Mind
Azure Cosmos DB Live TV returns with episode 43, where Principal Program Manager, Mark Brown and Microsoft MVP Sarah Dutkiewicz showcase how the relational mind can into the nonrelational side by looking at the differences in data modeling. They will walk through a common scenario and how relational modeling differs from modeling for document storage and graph databases. Data Modeling Microsoft defines data modeling as the process of analyzing and defining all the different data your business collects and produces, as well as the relationships between those bits of data. The process of modeling your data create...
Join Us! Azure Cosmos DB at Microsoft Build 2022
Find out what's new in the world of Azure Cosmos DB directly from our team at Microsoft Build 2022. We will be introducing new features that enable developers to build scalable, cost-effective cloud-native applications with ease. Join senior leadership, program managers, and engineers for live sessions, roundtable discussions, and much more. This live event will be held virtually and is free for anyone to register. You won’t want to miss it!  📆Tuesday, May 24, 2022 Scale Cloud-Native Apps and Accelerate App Modernization Tuesday, May 24th | 9:50 AM – 11:10 AM (PT) | 12:50 PM – 1:10 PM (ET) Lea...
Azure Cosmos DB Cassandra API: A true differentiator with Autoscale
 Overview We know that Apache Cassandra, a wide-column NoSQL database, is a great option to solve the 3 V’s (Volume, Variety and Velocity) of data requirements. It is a given that data will grow as the business expands. Invariably you will need to expand the cluster to accommodate additional data and handle greater throughput. This load may be difficult to predict. Apache Cassandra customers experience pain all through the scaling journey. With Azure Cosmos DB Cassandra API, customers experience no such pain because of seamless autoscaling. The provisioned throughput autoscale feature on Azure Cosmos DB Ca...
Larger document sizes and $expr support in Azure Cosmos DB API for MongoDB
We are excited to announce these recent updates in Azure Cosmos DB API for MongoDB that enable larger document sizes and expressions in your queries. 16MB document support (General Availability) To keep database operations as efficient as possible, it is best practice to keep documents to a small size. This applies to Azure Cosmos DB API for MongoDB as well as MongoDB. However, in some application use cases, larger documents may be required and beneficial. We’re happy to announce the public preview of 16MB document support in Azure Cosmos DB API for MongoDB. You can sign up for this preview thr...
Register now for Azure Cosmos DB Conf on April 19 – 20
Azure Cosmos DB Conf, our free, virtual developer event, returns April 19-20. The event will include three, 3-hour live streams in the Americas, Asia-Pacific and Australia, and Europe, the Middle East, and Africa. Each live stream will feature its own unique, region-specific content that will be created and delivered by local members of the Azure Cosmos DB community. You'll learn more about Azure Cosmos DB and see the kinds of apps others in the community are building. Join us live Watch Azure Cosmos DB Conf on-demand You can watch sessions on-demand during and after the live event. Visit ...