Transforming Data from Long Format to Wide Format Using Pandas Pivot Tables

Counting Total Day Difference in Pivot SQL: A Step-by-Step Guide

Transforming a Categorical Column into the Level 0 of a Column Multi-Index Using Pandas

Creating a Pivot Table with Pandas: Avoiding Double Counting in Unique De-Duped Sum

Pivoting Longest Functionality in R using Regular Expressions with `pivot_longer`

Splitting Categorical Values in SQL: A Deep Dive into Filtered Aggregation and Grouping

Transforming Data from Rows to Columns in Oracle SQL Using Subqueries and Conditional Aggregation

SQLite: Using Conditional Aggregation and Pivoting to Select Multiple Counts from a Single Column