SQL Tutorial - PIVOT

SQL PIVOTS Made Easy (Rows to Columns)

SQL: Pivot and Unpivot Data in SQL Server Database Including Multiple Columns - A Step-By-Step Guide

How to Combine Two SQL Tables with Identical Columns into One Using UNION ALL

Combine two columns into one column in SQL and add it to existing table

How to Combine Two Columns Independently in SQL without a Key

Unpivoting Data with SQL

SQL Unpivot Simplified (Turn Columns into Rows)

Unpivot Columns to Rows in SQL Server (SQL Detailed Walkthrough)