PinnedMariusz KujawskiData Lakehouse vs Data Warehouse vs Data Lake-Comparison of data platformsFor decades, data warehouses have been the dominant architectural approach for building data platforms in enterprises. However, with the…Jul 24, 20235Jul 24, 20235
PinnedMariusz KujawskiData Modeling Techniques For Data WarehouseData modeling is a process of creating a conceptual representation of the data and its relationships within an organization or system…Jun 19, 20233Jun 19, 20233
Mariusz KujawskiImproved Data Utilization with Semantic Models in Microsoft FabricYears ago, when I implemented my first OLAP cube, I quickly noticed a significant reduction in the number of requests for reports or data…Jun 27Jun 27
Mariusz KujawskiFlat Prices Analyses in Warsaw with Microsoft Fabric and CopilotIn this post, I’ll share my experience using Copilot for Power BI within Microsoft Fabric. Leveraging Microsoft Fabric Data Engineering, I…Jun 14Jun 14
Mariusz KujawskiUnity Catalog on Databricks: Mastering Data GovernanceUnity Catalog is a comprehensive governance solution for data and AI on Databricks, adding an extra layer of security for accessing data…Jun 31Jun 31
Mariusz KujawskiExploring Python Libraries for Data Engineering in MS Fabric: Pandas, Polars, DuckDB, and PySparkMicrosoft Fabric integrates various analytical services into a unified platform capable of supporting multiple activities, from data…May 131May 131
Mariusz KujawskiBuilding an Efficient ETL/ELT Process for Data Delivery“Data is the new oil” — a statement that has underscored our approach to data management over the past decade. We’ve dedicated ourselves…Apr 224Apr 224
Mariusz KujawskiUnit Testing and Code Modularization in DatabricksNotebooks are a popular way to work with data in Databricks. A notebook user can quickly read, transform, and interactively explore data…Apr 82Apr 82
Mariusz KujawskiMigration from Oracle Data Warehouse to Databricks LakehouseMigration from an old data warehouse to a public cloud may initially appear scary. After years of reliance on a single database engine…Mar 121Mar 121
Mariusz KujawskiIntroduction to Databricks: A Beginner’s GuideIn this guide, I’ll walk you through everything you need to know to get started with DatabricksFeb 262Feb 262