Data science, power BI and python tutorial. Learn power bi and SQL for business intelligence and data science. .
SQL stands for Structured Query Language. It is used to create, manage, modify, and retrieve data from relational databases. SQL commands are mainly divided into five categories: 1. DDL – Data Definition Language DDL is used to create and modify the structure of database objects, such as tables. CREATE The CREATE command is used to […]
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SQL → PySpark Tutorial & Cheat Sheet COMPLETE DEVELOPER CHEAT SHEET SQL → PySpark A practical tutorial and reference guide for converting SQL queries into PySpark DataFrame operations. Learn the syntax, understand the concepts, and copy production-ready examples. ⬇ Download PDF 🖨 Print SQL → PySpark Learn Cheat Sheet Tutorial Reference Learn SQL → PySpark
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Clean • Transform • Validate • Prepare Data rarely arrives ready for analysis. Real-world datasets can contain duplicate records, inconsistent text, missing values, incorrect data types, errors, unnecessary columns, and different structures across files. In this tutorial, you will learn how to use Power Query to build a reliable, repeatable data-cleaning process before your data
Power BI Day 3: Advanced Data Cleaning And Transformation with Power Query Read More »
Power BI Cheat Sheets 📊 Power BI CheatSheet — Day 1 Power BI • Cheat Sheet → Get → Transform → Clean → Shape Your Data Power Query is one of the most important components of Power BI. It is used to connect to data sources, clean and transform raw data, and prepare it before
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Welcome to Day 1 of Power BI Learning! In this tutorial, you’ll learn the basic Power BI workflow, key components, data loading options, calculations, data modeling, relationships, and filter context. 1. The Power BI Workflow The easiest way to understand Power BI is: Connect → Transform → Model → Calculate → Visualize → Publish →
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In this tutorial, we will learn how to create dynamic titles in Power BI that change based on user selections from a slicer. By using DAX measures, we can customize titles for visuals to reflect specific data Prepare Your Data Model Ensure your data model includes the necessary fields for the slicer filter, such as
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Power BI dashboards can sometimes face performance challenges due to data model complexity and loading inefficiencies. Understanding key optimization techniques helps ensure smooth and efficient report interaction. This guide outlines practical steps to enhance dashboard performance Disable Auto Date/Time in Data Load By default, Power BI automatically creates hidden date tables for date fields. This
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