Solving Date Manipulation Challenges: Counting Sessions by 15-Minute Intervals in Business Days

Simplifying Aggregation in PostgreSQL: A Step-by-Step Solution for Customer-Specific Order Prices

Managing Duplicate Entries in a Single Column While Keeping Other Columns Intact in R: A Step-by-Step Guide

Understanding Chained Indexing in Pandas Aggregation for Rounding Up Values After Group By Operations

Maximizing Efficiency in Complex Queries: A Solution Using Common Table Expressions (CTEs)