Unlock the power of relationships in Power BI with the DAX RELATED function! In this tutorial, you’ll learn how to use RELATED to fetch data from related tables, understand its role in one-to-many and many-to-one relationships, and apply it in real-world reporting scenarios. Perfect for beginners and advanced Power BI users, this guide covers practical […]
Explore this tutorial covering Star Schema, relational data models, views, and denormalization. Learn how to design efficient databases with practical examples, from business transaction data to creating a Star Schema for data warehousing.
Understand the fundamental differences between flat files and relational data models in data management. This video/tutorial compares the structure, scalability, performance, and use cases of flat file systems and relational databases. Ideal for beginners in data modeling, database design, or business intelligence.
Medallion Architecture is a modern data lakehouse framework with three layers: Bronze (raw data), Silver (cleansed data), and Gold (curated data for analytics). It’s designed for scalability, supporting batch and streaming data in cloud environments like Databricks. Bill Inmon advocates a top-down approach with a normalized enterprise data warehouse (EDW) for consistency, aligning with Medallion’s […]
Optimize your SQL queries: Ensure the underlying queries are efficient Add indexes to frequently filtered or sorted fields Use stored procedures instead of direct table access Reduce data volume by filtering at the database level Report Design Improvements
Struggling with slow Crystal Reports when dealing with millions of records? In this video, we’ll show you how to optimize and speed up your Crystal Reports performance like a pro! 🚀 Learn expert techniques including: Efficient SQL query design Using server-side filtering and indexing Minimizing formula complexity Limiting unnecessary data loads Leveraging stored procedures for […]
Learn how to transform your dimensional model into a visually stunning report using Power BI Desktop. In this step-by-step tutorial, we’ll cover data modeling, creating relationships, using DAX for calculations, and designing interactive dashboards. Whether you’re a beginner or an experienced user, this video will help you master the art of creating impactful reports.
Learn how to apply Principal Component Analysis (PCA) in machine learning for dimensionality reduction. In this step-by-step tutorial, we’ll cover the basics of PCA, its importance, and how to implement it using Python. Ideal for beginners and data enthusiasts looking to optimize their models and improve performance.
In this SQL tutorial, you’ll learn how to use the UNION ALL operator to combine the results of multiple SQL queries. Unlike the regular UNION operator, UNION ALL returns all rows, including duplicates, from the SELECT queries. This makes it an ideal choice for scenarios where you need to preserve all data, regardless of duplication. […]
In this SQL tutorial, we’ll explore how to summarize data effectively using the HAVING clause and correlated subqueries. Learn how to filter aggregated results, apply conditions to grouped data, and use subqueries that dynamically adjust based on the outer query. Perfect for beginners and advanced SQL learners alike! 📌 Topics Covered: ✅ Understanding the HAVING […]
