Jeferson MarquesPredicting with Regression in Python: A Simple GuideImagine you have a Spotify playlist full of rock songs. Each song has different features like duration, loudness, tempo, and more. It would…Mar 11Mar 11
Jeferson MarquesExploring Python Syntax: Understanding Variables, Keywords, Operators, Expressions, Functions…As someone deeply passionate about programming and fascinated by the elegance of Python syntax, I find joy in delving into its various…Feb 26Feb 26
Jeferson MarquesinDev GeniusExploring Common Table Expressions (CTEs) and Subqueries in SQL: A Comparative AnalysisAs a data enthusiast and SQL aficionado, I’ve often found myself immersed in the world of database querying, constantly exploring different…Feb 15Feb 15
Jeferson MarquesResolving Date Hierarchy Issues in Power BI with MySQL DataPower BI is a powerful tool for data visualization and analysis, but users may encounter challenges when dealing with date hierarchies. In…Jan 24Jan 24
Jeferson MarquesData Visualization: Crafting Stories with DataIn today’s data-driven world, the ability to effectively convey insights from complex datasets is a highly sought-after skill. Data…Sep 23, 2023Sep 23, 2023
Jeferson MarquesLeveraging Subqueries in SQL: Enhancing Data Aggregation with CASE and HAVINGStructured Query Language (SQL) is the backbone of data manipulation and retrieval in relational databases. Subqueries, often referred to…Sep 4, 2023Sep 4, 2023
Jeferson MarquesUnderstanding Database, Data Warehouse, and Data Lake: Differences, Advantages, and TransitionsIn today’s data-driven world, effective data management is paramount for businesses seeking to gain insights, make informed decisions, and…Sep 1, 2023Sep 1, 2023
Jeferson MarquesThe Significance of Data Cleaning in Data Analytics: Leveraging Google Sheets and BigQueryIn the realm of data analytics, the importance of clean and accurate data cannot be overstated. Raw data rarely arrives in pristine…Aug 24, 2023Aug 24, 2023
Jeferson MarquesTransitioning from Spreadsheets to Relational Databases: Making Informed Choices for Data AnalysisIn the ever-evolving landscape of data analysis, the choice between working with spreadsheets or transitioning to a robust relational…Aug 22, 2023Aug 22, 2023