Finding the Longest Negative Series in PostgreSQL: A Step-by-Step Solution

Detecting Changes in Columns Using Redshift Window Functions for Data Analysis

SQL Window Functions for Aggregate Calculations with the COALESCE and MAX Approach

Summing Over Rows Based on Column Value Using PostgreSQL Window Functions

Handling Missing Primary Keys for Derived Columns: The LAG/LEAD Puzzle in SQL Server 2012

BigQuery Data-Grouping: A Step-by-Step Guide to Combining Similar Data Points

Splitting a Column Value into Two Separate Columns in MySQL Using Window Functions