Creating Additional Rows in SQL Server Select Statements: Techniques Using CTEs and Derived Tables

Using max() Window Function with Case When for Conditional Grouping and Aggregation in SQL

Unlocking Data Insights with SQL Server's GROUP BY Clause and CASE Statements: A Comprehensive Guide

Revised Solution for Mapping Values in Two Columns Using dplyr and %in%

Understanding SQL Nested Queries: A Deep Dive into Case Statements and Grouping

Improving Patient Outcomes with R: A Comprehensive Guide to Case_When Function with Complex Conditions