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Category: Microsoft Fabric

Generating an Entity Diagram in a Fabric Eventhouse

Guy Reginiano announces a new tool:

As your KQL database grows, tables gather data from several Eventstreams, functions connect different tables, update policies move and transform data, and materialized views quietly keep aggregated data up to date – all working together behind the scenes 

It’s powerful, but it can also be hard to see the full picture. 

That’s exactly why we built the Entity Diagram – to give you a simple, visual way to explore how everything in your database connects.

Click through to see how it works.

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Microsoft Fabric October 2025 Feature Summary

Adam Saxton has a list:

This month’s update delivers key advancements across Microsoft Fabric, including enhanced security with Outbound Access Protection and Workspace-Level Private Link, smarter data engineering features like Adaptive Target File Size, and new integrations such as Data Agent in Lakehouse. Together, these improvements streamline workflows and strengthen data governance for users.

The list doesn’t feel quite as long as the prior couple of months, but there’s still a lot of content on here.

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OneLake Security and the Fabric SQL Analytics Endpoint

Freddy Santos takes us through the latest with respect to security in OneLake:

OneLake Security centralizes fine-grained data access for Microsoft Fabric data items and enforces it consistently across engines.
Currently in Preview and opt-in per item, it lets you define roles over tables or folders and optionally add Row-Level Security (RLS) and Column-Level Security (CLS) policies. These definitions govern what users can see across Fabric experiences.

Read on to see what you can do.

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Microsoft Fabric Direct Lake Join Index Creation

Phil Seamark explains a recent change:

If you’ve been working with Direct Lake in Microsoft Fabric, you’ll know its magic resides in its ability to quickly load data. It loads data into semantic models from OneLake when needed. This feature eliminates the overhead of importing. But until recently, the first query on a cold cache might feel sluggish. Why? One reason for this is that Direct Lake must build a join index. This index is added to the model during the first query. This index is a critical structure that maps relationships between tables for efficient lookups.

Earlier, this process was single-threaded and slow, especially on large tables with high cardinality. The good news? That’s changed.

Read on to see how, what a join index is, and what this impact looks like in practice.

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Learning Microsoft Fabric Real-Time Intelligence

Valerie Junk picks up a new skill:

If you are reading this article on my website, chances are you know me from my Power BI content, the videosarticlestutorials, or downloads, or you came across it on LinkedIn. I want to be upfront: I am a front-end/business person. I create reports that lead to action and help businesses make smarter decisions while building a data-driven strategy.

When I started talking about Fabric Real-Time Intelligence, people were surprised. Some were curious. Others probably wondered what had happened. For me, real-time reports push you to approach design in a completely different way because users need to take action immediately. Decisions happen in the moment, and that changes everything about how you visualize and structure information, so that got me interested!

Read on to see how Valerie picked up KQL as a language, as well as some of the challenges involved. I will say, the Eventhouse is also the fastest mechanism Microsoft has to query large amounts of data in Microsoft Fabric—it beats out the lakehouse and warehouse pretty handily.

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Automating Power BI Load Testing via Fabric Notebook

Gilbert Quevauvilliers grabs a query:

Load testing is essential when working with Microsoft Fabric capacity. With limited resources, deploying a Power BI report without testing can lead to performance issues, downtime, and frustrated users. In this series, I’ll show you how to automate load testing using Fabric Notebooks, making the process faster, easier, and repeatable.

Inspired by Phil Seamark’s approach, this method eliminates manual complexity and allows you to capture real user queries for accurate testing.

Read on for the first part, in which Gilbert uses the Performance Analyzer to capture query details.

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Copying Data across Tenants with Fabric Data Factory

Ye Xu makes use of the Copy job:

Copy job is the go-to solution in Microsoft Fabric Data Factory for simplified data movement, whether you’re moving data across clouds, from on-premises systems, or between services. With native support for multiple delivery styles, including bulk copy, incremental copy, and change data capture (CDC) replication, Copy job offers the flexibility to handle a wide range of data movement scenarios—all through an intuitive, easy-to-use experience. Learn more in What is Copy job in Data Factory – Microsoft Fabric | Microsoft Learn.

With Copy job, you can also perform cross-tenant data movement between Fabric and other clouds, such as Azure. It also enables cross-tenant data sharing within OneLake, allowing you to copy data across Fabric Lakehouse, Warehouse, and SQL DB in Fabric between tenants with SPN support. This blog provides step-by-step guidance on using Copy job to copy data across different tenants.

Click through for a demonstration, as well as the security permissions that are necessary for this to work.

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