Getting Top Records per Category: Using Window Functions to Achieve Complex Queries.

Filtering Records in Amazon Redshift Based on Timestamps and Country Order: A Step-by-Step Guide

Calculating Distinct Ids for Weekly Cohort in SQL: Improved Approach Using Window Functions

Resolving PostgreSQL Data Type Mismatches: Casting Expressions for Compatibility

Dynamic Prefixing of Column Names in SQL Joins: A Flexible Solution for Managing Ambiguity