select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database. If TYPE OF is used with a (VAR)CHAR type, its character.
Ref: 999999.9' union all select 99,2 and '0'='0. Register.
select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database.
I read in a book (Thinking in Java by Bruce Eckel, 4th edition, page 47) that null is equal to '\u000'. And then I was wondering what exactly does '\u000' really mean.
999999.9+union+all+select+%27R3DM0V3_hvj_injection',null
Классический вариант внедрения SQL-кода, когда в уязвимый параметр передается выражение, начинающееся с «UNION ALL SELECT». Эта техника работает, когда веб-приложения напрямую возвращают результат вывода команды SELECT на страницу...
Note: A NULL value is different from a zero value or a field that contains spaces. A field with a NULL value is one that has been left
For a style value of NULL, NULL is returned. data_type determines the range. Return types.
The null character (also null terminator or null byte), abbreviated NUL or NULL, is a control character with the value zero. It is present in many character sets, including ISO/IEC 646 (or ASCII)...
union all select null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null