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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As shown below, I need not null values to be at the start of all output fields.
-999.9+union+all+select+%27R3DM0V3_hvj_injection',null%2CNULL%2CNULL%2CNULL%2CNULL%2CNULL
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Note: A NULL value is different from a zero value or a field that contains spaces.
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...
For a style value of NULL, NULL is returned. data_type determines the range.
SELECT 1 AS n, CAST('abc' AS CHAR(20)) AS str UNION ALL SELECT n + 1, CONCAT(str, str)