The Library · Insights
Deep dives across data, automation & AI
162 in-depth articles — from Excel foundations to production machine learning. Filter by topic or difficulty to find exactly what you need.
Power BIExpert
Mastering Power BI Query Folding: Diagnosing Fold Boundaries, Optimizing Power Query Steps, and Reducing Data Source Load for Scalable Model Refreshes
Query folding is the difference between a Power BI refresh that takes 4 minutes and one that takes 45 — and breaking it is easier than you think. This lesson gives you the diagnostic tools, restructuring techniques, and architecture patterns to maximize server-side execution across every query in your model.
27 min read
Power BIPractitioner
Implementing Power BI Metric Alerts and Anomaly Detection with Smart Narratives to Deliver Automated Insight Summaries for Enterprise Stakeholders
Learn how to build a complete automated intelligence pipeline in Power BI — from threshold alerts and AI-powered anomaly detection to Smart Narratives that generate natural-language explanations and Power Automate flows that deliver insights to stakeholders before they think to ask. This lesson covers production-ready DAX, tuning strategies, and multi-audience routing for enterprise deployments.
25 min read
Power BIPractitioner
DAX Event-in-Progress Pattern: Calculating Overlapping Intervals, Headcount Snapshots, and Concurrent Activity Metrics Across Date Ranges
Standard DAX aggregations fail when you need to answer "what was happening on this date?" across interval-based data. This lesson teaches the Event-in-Progress pattern — the definitive approach for headcount snapshots, concurrent activity metrics, and any scenario where your data has start dates and end dates instead of point-in-time events.
22 min read
Power BIPractitioner
Mastering Power BI Drillthrough Pages: Building Context-Aware Detail Views with Filters, Back Buttons, and Cross-Report Navigation
Drillthrough pages are one of the most powerful — and most misunderstood — features in Power BI. This lesson teaches you how to build production-ready detail views that pass the right filter context, navigate cleanly in both directions, and even bridge across separate report files with cross-report drillthrough.
26 min read
Power BIFoundation
Implementing Power BI Service Principal Authentication to Automate Enterprise Workspace Provisioning and Dataset Access Without User Credentials
Manual workspace provisioning and user-credential-dependent automations are the enemy of scalable enterprise BI. Learn how to register an Azure AD service principal, configure Power BI to trust it, and write automation scripts that create workspaces and manage datasets without ever logging in as a human.
17 min read
Power BIFoundation
DAX Formatting Best Practices: How to Write Readable, Maintainable Measures Using Indentation, Naming Conventions, and Comments
Unreadable DAX is a technical debt bomb waiting to go off. This lesson teaches you the indentation patterns, naming conventions, and commenting strategies that make your measures easy to debug, hand off, and extend — starting from first principles.
15 min read
Power BIFoundation
Connecting Power BI to SQL Server: Writing Native Queries, Selecting Tables, and Managing Credentials for Reliable Data Loads
Learn how to connect Power BI Desktop to SQL Server the right way — choosing between table selection and native SQL queries, authenticating correctly, and setting up credentials so your scheduled refreshes never silently fail. This foundational lesson covers everything a beginner needs to build reliable, production-ready data connections.
19 min read
Power BIExpert
Implementing Power BI Dataflows Gen2 with Azure Data Lake Storage Integration and Computed Entities to Build a Reusable Enterprise Transformation Layer
Learn how to architect a production-grade Power BI Dataflows Gen2 implementation with ADLS Gen2 storage, multi-layer computed entity transformations, and REST API-orchestrated refresh pipelines. This lesson gives you the deep technical and architectural understanding needed to build a transformation layer the entire enterprise can trust.
29 min read
Power BIExpert
DAX Query Optimization with VertiPaq Analyzer: Interpreting Column Cardinality, Relationship Materialization, and Data Model Compression to Eliminate Bottlenecks at Scale
Most Power BI performance problems can't be fixed with DAX rewrites — they live in the data model's storage layer. This lesson teaches you to use VertiPaq Analyzer to diagnose column cardinality failures, relationship materialization costs, and compression anti-patterns that are silently bloating your model and killing query performance at scale.
27 min read
Power BIExpert
Mastering Power BI Embedded Analytics: Integrating Reports into Web Applications Using Service Principal Authentication and the JavaScript API
Learn how to embed fully interactive Power BI reports into web applications using service principal authentication, the Power BI REST API, and the powerbi-client JavaScript SDK. Covers multi-tenant RLS enforcement, token refresh, and programmatic report control from filter application to bookmark management.
29 min read
Power BIPractitioner
Implementing Power BI Datamart with Automatic Schema Detection and Built-In SQL Endpoint to Deliver Self-Service Analytics Without a Dedicated Data Warehouse
Power BI Datamart gives you a managed relational database, a built-in SQL endpoint, and an auto-generated semantic dataset — all without provisioning a single Azure resource. Learn how to build, govern, and connect to a production Datamart for departmental self-service analytics.
24 min read
Power BIPractitioner
DAX What-If Analysis with Calculation Groups and Field Parameters: Modeling Price, Volume, and Mix Variance Scenarios Dynamically
Learn to build a complete price-volume-mix variance analysis engine in Power BI using calculation groups for scenario switching, What-If parameter sliders for sensitivity analysis, and field parameters for dynamic metric selection. Goes well beyond basic PVM math to show you a production-ready architecture that reconciles, performs, and delights business users.
20 min read