{keyword} Union All Select Null,null,null,null,null,null-- Gojb Link

This is a SQL operator used to combine the result sets of two or more SELECT statements into a single result set.

: The database returns a row of empty data. The attacker now knows the table has 6 columns and can proceed to more dangerous injections, such as UNION SELECT username, password, NULL... to steal sensitive information. This is a SQL operator used to combine

This string is a classic example of a used by security researchers and attackers to probe a website's database for vulnerabilities. to steal sensitive information

: This "comments out" the rest of the original SQL query written by the developers. : Any code that was supposed to follow

: Any code that was supposed to follow the input (like a closing quote or a WHERE clause) is ignored by the database, preventing syntax errors that would break the injection. 5. GoJB

: NULL is used because it is compatible with almost any data type (integers, strings, dates, etc.).