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

: 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 string is a classic example of a used by security researchers and attackers to probe a website's database for vulnerabilities. : The database returns a row of empty data

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

If the page returns an error (like "The used SELECT statements have a different number of columns"), the attacker will try again with five or seven NULL values until the error disappears. 4. -- (The Comment) In SQL, double-dashes signify the start of a comment. : For a UNION to work

This represents the original search term or input value that a legitimate user would enter. In an attack scenario, the "payload" (the rest of the string) is appended to this keyword to trick the database into executing an additional command alongside the intended query. 2. UNION ALL

: By using six NULL values, the attacker is testing if the original query has exactly six columns.

: For a UNION to work, the second query must have the exact same number of columns as the first query. 3. SELECT NULL,NULL,NULL,NULL,NULL,NULL