999999.9 /**/union/**/all /**/select /**/cast...
select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database.
999999.9' /**/union/**/all /**/select /**/cast...
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.
999999.9 /**/union/**/all /**/select /**/cast...
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?
CAST and CONVERT (Transact-SQL) - SQL Server | Microsoft Docs
SELECT DISTINCT CAST(EnglishProductName AS char(10)) AS Name, ListPrice FROM dbo.DimProduct WHERE EnglishProductName LIKE
999999.9 uNiOn aLl sElEcT cAsT 0x393133353134353632312e39 as...
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mysql - Site has been hacked via SQL Injection - Stack Overflow
They are combining 126, 39, database name as hex value, 39, and 126. -- is a mysql comment - it ignores the rest of your query after.
MySQL :: MySQL 5.7 Reference Manual :: 12.10 Cast Functions and...
SELECT CAST('test' AS CHAR CHARACTER SET utf8 COLLATE utf8_bin); Normally, you cannot compare a BLOB value or other binary string in
MySQL CAST() Function | Definition and Usage
Definition and Usage. The CAST() function converts a value (of any type) into the specified datatype.
ASCII Codes - Table of ascii characters and symbols
48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63. 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F. 0 1 2 3 4 5 6 7 8 9 : ; < = > ? ASCII. Hex.
Решение задач по sql injection с сайта alexbers.com/sql / Хабр
В данный момент у нас нет одинакового количества колонок, поэтому union надо использовать по-другому.