Dive into the power of SQL window functions, a transformative tool for data analysis that enables calculations across related table rows without collapsing them like traditional GROUP BY clauses. These functions, categorized into aggregate (like AVG, MAX, MIN, SUM, COUNT), value (ROW_NUMBER, RANK, DENSE_RANK, PERCENT_RANK, NTILE), and ranking (LAG, LEAD, FIRST_VALUE, LAST_VALUE) types, add calculated…
The tutorial has two videos. In first video the downloading installation and setting up of the SQL server express, and sql server management studio is explained. In the second vidoe, basic sql concepts are explained. This tutorial guides users through the free download and installation of Microsoft SQL Server Express and SQL Server Management Studio…
This tutorial explains how to use custom SQL queries in Power BI to manipulate data before loading it. It covers connecting to a SQL Server database, entering a custom SQL statement, and modifying the query afterwards. The video also demonstrates how this can be used to filter data based on specific criteria and create visualizations….
In this tutorial, we explore the newly introduced Pivot By and Group By functions in Microsoft Excel. Learn how to dynamically summarize and modify your data with these powerful tools. Whether you’re an Excel novice or an advanced user, these functions can enhance your data analysis capabilities. #groupby #pivotby #ExcelTips #DataAnalysis #MicrosoftExcel #PivotTables #ExcelFunctions #DataVisualization…
