Tags / pivot
Using SQL Server's Pivot Function to Get One-to-Many String Results as Columns in a Combined Query
How to Convert Rows to Columns Using Pivot in SQL Server
Counting Rows that Share a Unique Field in Pandas Using Pivoting and Transposing Techniques
Conditional Aggregation Techniques for Data Analysis: Grouping by Date and Calculating Various Metrics
Solving Arithmetic Progressions to Find Missing Numbers