Select char_length(cast('123456789 1' as varchar(10))) from rdb$database. Получаем: Exception ... string truncation Т.е. пробел мы обрезать можем, а другие символы нет. Так и должно быть или нет?
select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database. If TYPE OF is used with a (VAR)CHAR type, its character.
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Перевод отдельных слов, фраз, а также целых текстов и веб-страниц (английский, немецкий, французский, испанский, польский и др.).
... as int) from rdb$database. If TYPE OF is used with a (VAR)CHAR type, its character. ...
Yes, that's a classic SQL injection attack. Your only real long term defence is to secure the application, though you can ban IPs as required and there are various tools out there which will attempt to automate this. Ultimately, unless it becomes a DOS attack...
So, as it's being used a lot, I would submit my answer. In my opinion, the aim of these requests is to check the presence or absence of a sql injection.
As of a couple of weeks ago, I keep seeing a LOT of 404s that don't even look like links
CHAR() (SM): SELECT CHAR(64) Переводит ASCII-код в соответствующий символ. 9. Оператор UNION С оператором UNION можно делать запросы к пересечению таблиц. В основном, вы можете отправить запрос, возвращающий значение из другой таблицы.
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