sql union all data type error with nulls - Stack Overflow. stackoverflow. ...
Best Result For : 999999.9 uNiOn aLl sElEcT cAsT 0x393133353134353632312e39 as char
11223344) UNION SELECT NULL,NULL,NULL,NULL WHERE 1=2 –- Если нет ошибки, значит синтаксис верный, т.е. используется MS SQL Server.
Перевод отдельных слов, фраз, а также целых текстов и веб-страниц (английский, немецкий, французский, испанский, польский и др.).
You can clearly see rules containing keywords "select", "union", "all" etc.
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.
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