Counting Distinct Customers Over Window Partition in Redshift Using Dense_Rank() Function

Alternatives to Subqueries for Grouping by Count of Groups in Data Analysis

Understanding Redshift's Behavior with Trailing Whitespace in Text Columns: Optimizing Query Performance Without Ignoring Significance

Ranking Data by Value in Amazon Redshift: A Comparative Analysis of Cumulative Sum, Recursive CTE, and Merge Statement Approaches

How to Use DENSE_RANK() Function in SQL Server for Consistent Rankings

Using Case Statements with Conditional Clauses for Efficient Data Filtering and Analysis in SQL