Union select null, null, null, null, null, null, null from information_schema.tables. for a small database containing three tables. this instruction is used in sql injection I tried it and it worked but I didn't really know how it works can somebody help me...
...null, null, null, null from information_schema.tables. for a small database containing three tables. this instruction is used in sql injection I tried it and it
UNION ALL SELECT NULL, *, NULL, NULL FROM email. I understand what this does and why; the hacker needs to create a query that has the same number of columns as the query it's being merged with, and shifted around the * to make sure the emails are displayed. That's not my question.
Используйте NULL в UNION-инъекциях вместо попыток угадать строку, дату, число и прочее. Но будьте аккуратны при слепой инъекции, т.к. вы можете спутать ошибку БД и самого приложения. Некоторые языки, ��апример ASP.NET, выдают ошибку при использовании значения NULL (т.к...
IS NULL вернёт истину, если операнд имеет значение NULL и ложь, если он им не является.
$ta_sqlString = "SELECT * FROM categories WHERE catid=$catid"; $rs_getCatDetails = mysql_query($ta_sqlString)
...28SELECT+count(*),concat((select+%28SELECT+concat%280X7E%2C0X27%2CUNHEX%28HEX
Be as detailed as possible. Community members, including developers, shall try and help.
DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1; -- -- Dumping data for table `registration` -- INSERT INTO `registration` (`username
If a null pointer constant is converted to a pointer type, the resulting pointer, called a null pointer, is guaranteed to compare unequal to a pointer to any object or function.”