Database Complete Guide to UNION vs UNION ALL in MySQL – Explained for Beginners
When working with SQL queries, especially in MySQL, combining results from multiple queries is a common task. Two powerf...
Database
Database 
Example DB design for “Gacha” – Same Probability
Gacha systems are commonly used in mobile games and online services to provide randomized rewards to users. A well-struc...
Database How to Use WHERE Clause with mysqldump
When backing up MySQL data using mysqldump, you may need to export only specific data instead of the entire database, es...
Example DB design for “Gotcha” – Grade Probability
This article describes a suggested DB design.This design is just an example.Please use this as a template and adapt it t...
Database DB design of “reservation system” – basic form
This article describes a proposed DB design for a "Reservation System".SummaryThere are no complicated functions.All you...
Example DB design for a “Waiting list system”
This article presents a proposal for a DB design related to a "Waiting list system".Some types are described, from very ...
