Tags / unpivot
Pivot Table Aggregation - Converting Rows to Columns by Date
Unpivoting Multiple Rows: A Comprehensive Guide to Transforming Rows into Columns in SQL Server
Calculating the Difference between Two Averages in PostgreSQL: A Step-by-Step Guide to Efficient Data Analysis and Manipulation
Transforming a Table with Column Names as Values for Phone Numbers
How to Create a Pivot Table in Oracle SQL Without Using Aggregate Functions