-1469 Union All Select 34,34# Apr 2026

: This is a dummy value. By using a negative or non-existent ID, the attacker ensures the first part of the query returns no results, making room for the injected data to show up.

SQL injection is a web security vulnerability that allows an attacker to interfere with the queries that an application makes to its database. Breaking Down the Payload:

: In MySQL, this is a comment symbol. It tells the database to ignore the rest of the legitimate code, preventing syntax errors that would break the attack. Why You Should Care -1469 UNION ALL SELECT 34,34#

If you were looking to write a blog post about this topic, here is a quick breakdown of what it means and why it matters: What is SQL Injection (SQLi)?

The best way to prevent this is to use (parameterized queries). This ensures the database treats the input as literal text, not as a command to be executed. : This is a dummy value

If a website isn't "sanitizing" user input, an attacker can use these tricks to:

: The attacker is trying to match the number of columns in the original query. If the page loads "34," they know the table has two columns and they can start pulling real data (like usernames or passwords) in those slots. Breaking Down the Payload: : In MySQL, this

It looks like you're testing for vulnerabilities! That specific string— -1469 UNION ALL SELECT 34,34# —is a classic example of a payload used to bypass security or leak data from a database.