-5025 Order - By 1#

SELECT name, email FROM users WHERE id = "-5025" ORDER BY 1#";

This is often a "false" or "null" value. By inputting a value that likely doesn't exist (like a negative ID), the attacker forces the application to return an empty result set or an error. This makes it easier to see how the database reacts when the injected code is added. ORDER BY 1 : This is the structural probe . -5025 ORDER BY 1#

The number 1 refers to the first column in the SELECT statement. SELECT name, email FROM users WHERE id =

SQL Injection is a vulnerability where an attacker interferes with the queries an application makes to its database. The payload "-5025 ORDER BY 1#" is an "Inference" or "Error-based" probe used to determine the structure of a database table without having direct access to the source code. ORDER BY 1 : This is the structural probe

This is the gold standard. It treats user input strictly as data, never as executable code.

Attackers increment this number (e.g., ORDER BY 2 , ORDER BY 3 ). When the database throws an error (e.g., "The ORDER BY position number 10 is out of range"), the attacker knows exactly how many columns the original query is fetching.