Normalizing Friends Lists in a MySQL Database: A Comparative Analysis of Three Methods

Retrieving Values from Two Tables Using SQL: A Comparative Analysis of Join-Based and String Manipulation Approaches

Understanding the Performance Bottleneck of MySQL Slow Query in a View

Collecting Distinct Users by Day from the Last 90 Days Only When Older Than Last 90 Days Using SQL Queries

Understanding the Fine Print of Foreign Keys in MySQL: How to Ensure Referential Integrity When INSERT Values Are Not Enforced

Using Window Functions to Get the Last Fixed Price per Product from a Table in MySQL

Splitting a Column Value into Two Separate Columns in MySQL Using Window Functions

Extracting Primary and Secondary Performers from a Single MySQL 8 Query Using GROUP_CONCAT Functionality

SQL Query for ID Values with Multiple Entries and Condition-Based Filtering

Counting Scores of Winners and Losers Against Each Other in SQL