Null,null,null-- Djgp | {keyword} Union All Select

If you’ve spent any time looking at server logs, you’ve probably seen it: a weird string of keywords like UNION ALL SELECT NULL . It looks like gibberish, but it’s actually an attempt to speak directly to your database behind your back. What is this string?

: They use "NULL" to figure out exactly how many columns your database table has without triggering a data-type error. {KEYWORD} UNION ALL SELECT NULL,NULL,NULL-- DJGP

: The attacker is trying to append their own results to your original database query. If you’ve spent any time looking at server

Tools like Sequelize, Eloquent, or Entity Framework handle much of this protection for you by default. The Bottom Line : They use "NULL" to figure out exactly

You don’t have to be a security wizard to stop this. The "Golden Rule" of modern web dev is simple:

The snippet {KEYWORD} UNION ALL SELECT NULL,NULL,NULL-- is a classic attack pattern.

While this might seem like just a string of code, it’s actually a great jumping-off point for a blog post about and database protection . Beyond the Payload: Understanding SQL Injection and "DJGP"