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

SELECT DISTINCT ON (label) * FROM products ORDER BY label, created_at DESC;

Retrieving Latest Record for Each ID from Two Tables in Oracle SQL: A Step-by-Step Guide

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

Fetching Top 25 Rows per Column: A SQL Solution Guide for Handling Complex Data

Using Window Functions to Get the Highest Metric for Each Group

Retrieving the Latest Record from Duplicate Values Without Grouping in MySQL

Understanding How to Use PostgreSQL's SELECT Statement for Efficient Querying

Filtering SQL Server Data According to Its Max Value

Calculating the Average of Last 3 Values for Each User in SQL