It looks like you've posted an SQL injection payload, which is often used in attempts to exploit vulnerabilities in a database application. It's important to note that SQL injection is a criminal offense and unethical behavior in the context of security and software development.
If you're seeking to learn about security, I would encourage you to study ethical hacking, penetration testing, and guidelines established by organizations like OWASP (Open Web Application Security Project). These resources can help you understand how to protect applications from SQL injection attacks and other security threats, as well as the importance of secure coding practices.
If you need assistance or information on any specific topic related to web security, feel free to ask!