SQL Tutorial - PIVOT

SQL PIVOTS Made Easy (Rows to Columns)

SQL Pivot and Unpivot: Transforming Rows & Columns for Data Analysis

MS SQL Tutorial: How and why to use ROW_NUMBER. Includes PARTITION BY and ORDER BY examples.

How to Add a Row Number to Your SQL Query Using row_number and partition by

4.SQL Interview Question: How to use Row_Number() and Subquery in sql

SQL Tutorial - UNPIVOT

Unpivoting Data with SQL

SQL Unpivot Simplified (Turn Columns into Rows)