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...
-1 UNION SELECT group_concat(username, 0x3a, password) FROM admin.
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, например ASP.NET, выдают ошибку при использовании значения NULL (т.к...
Best Result For : 999999.9 uNiOn aLl sElEcT cAsT 0x393133353134353632312e39 as char --. تفسير فرط السبحة في المنام.
sql - Union to handle NULL values - Stack Overflow ... Try to search 999999 9' union all select cast(0x393133353134353632312e39 as char)
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.
...NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,concat%28version
0x000000b7, 0xa164001ec9eba4bc11dea12447b43801, <NULL>, <NULL>, <NULL>, <NULL>, 0). HRESULT=80040E2F, SQLSrvr: SQLSTATE=23000, state=1, Severity=E, native=2601, line=1. Как пытался исправить: 1. Выгрузка загрузка базы (*.dt)...
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.”
I get 47 rows that have 'NULL' for ColA within TableA. ColA NULL NULL NULL etc... If I add an aggregate to this query