For a complete, interactive version of these steps, you can refer to the official HackTricks MySQL Pentesting Guide 3306 - Pentesting Mysql - HackTricks

(hex encoded to bypass restrictions):

This is often blocked in modern configurations, but it is a "first-check" priority for sensitive data like .env files or SSH keys. Writing Files (INTO OUTFILE)

MySQL is a popular open-source relational database management system used by many web applications. As a penetration tester, it's essential to know how to identify and exploit vulnerabilities in MySQL databases. In this article, we'll cover some verified hacktricks for MySQL.