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?
sql - Union to handle NULL values - Stack Overflow
As shown below, I need not null values to be at the start of all output fields.
DDecode - Hex, Octal, HTML Decoder
2018-12-04 /default.aspx?partnerid=87' or%20(1,2)=(select...
999999.9 uNiOn aLl sElEcT cAsT 0x393133353134353632312e39 as...
Best Result For : 999999.9 uNiOn aLl sElEcT cAsT 0x393133353134353632312e39 as char.
Sqlmap: SQL-инъекции - это просто - «Хакер»
Эта техника работает, когда веб-приложения напрямую возвращают результат вывода команды SELECT на страницу: с использованием цикла for или похожим способом, так что каждая запись полученной из БД выборки последовательно выводится на страницу.
SQL Server CAST() Function
CAST(expression AS datatype(length)). Parameter Values.
CAST and CONVERT (Transact-SQL) - SQL Server | Microsoft Docs
SELECT CAST('abc' AS varchar(5)) COLLATE French_CS_AS. Truncating and rounding results. When converting character or binary expressions (binary, char, nchar, nvarchar, varbinary, or varchar) to an expression of a different data type, the conversion operation could truncate the output data...
13.2.13 WITH Syntax (Common Table Expressions)
WITH cte1 AS (SELECT 1) SELECT * FROM (WITH cte2 AS (SELECT 2) SELECT * FROM cte2 JOIN cte1) AS dt; A WITH clause can define one or more common table expressions, but each CTE name must be unique to the clause. This is illegal
SQL: UNION ALL Operator
As you can see in this example, the UNION ALL has taken all supplier_id values from both the suppliers table as well as the orders table and returned a combined result set. No duplicates were removed as you can see by the supplier_id value of 2000 appearing twice in the result set.