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…16 min read·Jul 24, 2023--4--4
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…11 min read·Jun 19, 2023--3--3
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…7 min read·1 day ago----
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…8 min read·Jun 3, 2024----
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…8 min read·May 13, 2024--1--1
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…15 min read·Apr 22, 2024--4--4
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…7 min read·Apr 8, 2024--2--2
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…12 min read·Mar 12, 2024--1--1
Mariusz KujawskiIntroduction to Databricks: A Beginner’s GuideIn this guide, I’ll walk you through everything you need to know to get started with Databricks19 min read·Feb 26, 2024--1--1
Mariusz KujawskiExploring the Medallion Architecture in Microsoft FabricThe Medallion architecture stands out as one of the most popular frameworks for constructing a data lake or lakehouse. Its core concept…9 min read·Feb 5, 2024--2--2