Resolving MySQL Error: Using Non-Aggregated Columns in GROUP BY Clause

Optimizing Queries for Top Rows with Latest Related Row in Joined Tables

Finding the First Row for Each ID-Grade Combination Using Window Functions in MySQL

Finding OID with Start and Stop Encompassing Connect and Disconnect Dates in SQL

Using Arrays for Conditional Aggregation in BigQuery: A Pivot Table Solution

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

Querying Single Rows in a Table with Multiple Rows in a Subquery Using Row Number and Aggregate Functions

Retrieving the Party with the Maximum Number of Votes in MS Access SQL

Understanding and Applying Group By with ROW_NUMBER() Function in SQL Server for Advanced Analytics

Selecting Distinct Records with MySQL's Max and Distinct: A Step-by-Step Solution Using `deleted_at` Column