Get the Top 3 Score Rows for Each Category in a Pandas DataFrame Using Multiple Approaches

Retrieving Latest Date and Total Enrollments from Duplicated School Records

Joining Two Tables and Getting the Most Recent Records for a Given Name: A SQL Solution Using Correlated Subqueries

Delete Records from a Table Based on Count and Latest Record

Retrieving Top 1 Row per Group: A Flexible Approach to Data Analysis

Retrieving Maximum Values: Sub-Query vs Self-Join Approach

Optimizing Postgres Queries: Simplifying Subqueries and Indexing Strategies for Performance Gains

Finding Top 2 Customers by Maximum Amount of Transaction in Oracle DB: A Comprehensive Guide

Understanding Lateral Joins in PostgreSQL: A Deep Dive

Finding the Second Largest Value in a Grouped Dataset Using SQL and Ranking Functions