It looks like you're trying to use a SQL injection technique. SQL injection is a method used to manipulate a database by injecting malicious SQL code into a query. This practice is illegal and unethical when used to exploit vulnerabilities in systems without permission.
If you're looking to learn about SQL injection for educational purposes, I recommend studying it in a controlled environment, such as a penetration testing lab or a cybersecurity course. Always ensure you have permission to test any system for vulnerabilities.
If you have questions about SQL, databases, or cybersecurity in general, feel free to ask!