Engineer Tang's Implementation Study Notes

Dec 3, 2025 · Databases

Wallet, Pre-Made Meals & Calculators: Master Database Triggers, Procedures & Functions

This article explains MySQL triggers, stored procedures, and user-defined functions using relatable analogies—a wallet for triggers, pre-made meals for procedures, and a custom calculator for functions—complete with syntax templates, practical code examples for automated data logging, batch revenue calculation, and tiered commission logic, plus a selection guide for choosing the right tool.