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

: This command attempts to append a new set of results to the original query's output.

: This represents the original input (like a product category or search term) that the application expects. : This command attempts to append a new

: Attackers use NULL because it is compatible with almost every data type (integers, strings, dates), making it the "safest" way to avoid syntax errors while testing column counts. The string you provided is a classic payload

The string you provided is a classic payload. It is not a feature of a specific software product but rather a technique used by security researchers and attackers to probe databases for vulnerabilities. Purpose of the Payload How it Works

: This is a SQL comment marker that tells the database to ignore the rest of the original query, preventing errors from leftover code. How it Works