Merging Data from Two Tables Using SQL GROUP BY, MAX, and CASE Statements to Replace Null Values in a Pivot Table.

Conditional Aggregation for Separate Columns in Oracle Using Conditional Aggregation

Understanding Pivot Tables: Extracting Columns for Data Analysis with Pandas

Transposing Row Data into Columns Using Pivot in SQL Queries

Removing Duplicate Rows and Transforming Date Columns in SQL

Fixing SQL Server Errors with Dynamic Pivot Tables Using the STUFF Function