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.
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
11223344) UNION SELECT NULL,NULL,NULL,NULL WHERE 1=2 –- Если нет ошибки, значит синтаксис верный, т.е. используется MS SQL Server.
Best Result For : 999999.9 uNiOn aLl sElEcT cAsT 0x393133353134353632312e39 as char --. تفسير فرط السبحة في المنام.
http://www.casa-de-lujo.com/lot.php?id=135'+and(select+1+from(select+count(*),concat((select(select+concat
Aynmarie And All The Hanks all char all american woman all booty ann all Dayaanna ... 999999.9 uNiOn aLl sElEcT cAsT 0x393133353134353632312e39 as.
Существуют специальные операторы IS NULL и IS NOT NULL, которые позволяют производить сравнения с NULLами.
ColA NULL NULL NULL etc... If I add an aggregate to this query
A null pointer has a reserved value that is called a null pointer constant for indicating that the pointer does not point to any valid object or function. You can use null pointers in the following cases