Retrieving the Highest Value for Each ID in a Query: A Comparative Analysis of Window Functions, Ordering, and Limiting

Using Window Functions to Count with HAVING Sum Restrictions in a JOIN without Sub-Queries

Using Listagg() to Append Duplicate Records in Oracle SQL

Filtering SQL Result by Condition to Receive Only One Row per Customer for Each Product Type.

Reducing Rows in Results of Joined Query Using GROUP_CONCAT in MySQL

Using Aggregate Functions and Joining Tables to Find Matching Department Hires

Running Total Count of Distinct Values in SQL Window

Handling NULL Values with a Count Function: A Practical Guide for MySQL Subqueries

How to Transpose Columns in WordPress Tables Using SQL Conditional Aggregation