sql injection "union select null" - CodeProject
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...
qndbq1bbxilyCzFA') UNION ALL SELECT NULL... - Pastebin.com
qndbq7bbxilyCzFA') UNION ALL SELECT NULL,NULL,NULL,CONCAT(0x716e646271,IFNULL(CAST(grantee AS CHAR),0x20),0x716a716771),NULL FROM INFORMATION_SCHEMA.USER_PRIVILEGES#qjqgq.
hitman 2 silent assassin--tor--random-agent--level=5--risk=3--tamper...
...SELECT NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,CONCAT(0x717a6a7171
mysql - Site has been hacked via SQL Injection - Stack Overflow
0x31303235343830303536 is NULL - they are just matching the number of columns in your existing query. If you had SELECT * FROM users and users had 4 columns, the UNION must also have 4 columns. As a result, they just used `NULL values to populate those columns.
[CRITICAL] unable to execute operating system commands via the...
Type: UNION query Title: Generic UNION query (NULL) - 10 columns Payload: pageid=-7691 UNION ALL SELECT NULL,NULL,NULL,NULL,NULL,NULL,CONCAT(0x7170627071...
sqlmap - Инструменты Kali Linux
...СУБД (по умолчанию 5) --union-cols=UCOLS Диапазон колонок для тестирования с запросами UNION SQL инъекций --union-char=UCHAR Символ для использования при брутфорсинге количества колонок --union-from=UFROM Таблица для использования в FROM части UNION.
Заметка про NULL / Хабр | select col from ttt where col is not null
Существуют специальные операторы IS NULL и IS NOT NULL, которые позволяют производить сравнения с NULLами.
Обработка значений NULL | Microsoft Docs
Значение Null не является ни пустой строкой (для символьного типа данных или типа данных datetime), ни нулевым значением (для числовых типов
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