[In preview] Public Preview: Cosmos DB in Microsoft Fabric

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The Public Preview of Cosmos DB in Microsoft Fabric was announced in mid-2025, introducing significant new capabilities that integrate operational database workloads with Microsoft Fabric’s analytics ecosystem.

Key Features and Capabilities

  • Seamless Integration with OneLake via Automatic Mirroring
    Cosmos DB in Fabric automatically mirrors your operational NoSQL data to OneLake in near real-time, using the open-source Delta format. This replication is continuous—covering inserts, updates, and deletes—and requires no manual setup. It enables your OLTP data to be accessible for analytics, reporting, and data science workflows within the broader Fabric ecosystem. You can query this data with T-SQL, Spark, notebooks, and leverage Copilot-powered Power BI for real-time insights[1][3].

  • Advanced Vector and Full-Text Search
    The service supports efficient vector indexing and search, enabling similarity searches based on the semantic meaning of data through vector embeddings. It offers multiple vector indexing options optimized for different workload sizes, such as Quantized Flat for smaller and DiskANN for large-scale scenarios. Full-text search capabilities allow for rich text querying using linguistic analysis, ranking, and pattern recognition, enabling fast, flexible retrieval even on large or unstructured datasets. Hybrid search capabilities combine vector and traditional keyword methods for improved relevance[1][3].

  • AI-Optimized Database
    Cosmos DB in Fabric is designed with AI workloads in mind. It is optimized and autonomous, simplifying the building of agentic AI applications by providing database features automatically configured for AI usage. This positions it as the preferred backend for AI apps, especially when combined with Fabric’s data science, BI, and real-time intelligence features[2].

  • Unified Data Platform
    Cosmos DB in Fabric complements the existing SQL database workload in Fabric allowing organizations to handle semi-structured NoSQL data alongside relational data. This unification aids operational and analytical needs under one platform, enhancing efficiency and simplifying data management[2].

Availability

  • Currently available as a preview to limited participants, with options to apply for early access or try the overall Microsoft Fabric platform via a free trial[2].

Summary

Cosmos DB in Microsoft Fabric preview offers an AI-ready, highly integrated NoSQL database solution with automatic real-time data mirroring to OneLake and advanced vector and full-text search capabilities. It empowers real-time analytics and AI application development by bridging operational data storage and advanced analytics in a unified platform, simplifying data workflows across Microsoft Fabric[1][2][3].

This release reflects Microsoft's ongoing strategy to build a comprehensive, AI-optimized data platform that supports both operational and analytical workloads seamlessly.

อ้างอิงค์ : https://azure.microsoft.com/updates?id=498185

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