SELECT CAST (miles AS INT) FROM Flights -- convert timestamps to text INSERT INTO mytable (text_column) VALUES ... Now you can chat with who search for : 999999.9 uNiOn aLl sElEcT cAsT 0x393133353134353632312e39 as char.
As a result, they just used `NULL values to populate those columns. the real confusion is in the CONCAT(). They are combining 126, 39, database name as hex
SELECT * FROM table WHERE field=999999.9 UNION ALL SELECT "91351456272.9","91351456272.9"
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Union select null, null, null, null, null, null, null from information_schema.tables. for a small database containing three tables. this instruction is used in sql injection I tried it and it worked but I didn't really know how it works can somebody help me...
Для значения стиля NULL возвращается NULL.For a style value of NULL, NULL is returned.
The null character (also null terminator or null byte) is a control character with the value zero. It is present in many character sets, including ISO/IEC 646 (or ASCII), the C0 control code, the Universal Coded Character Set (or Unicode), and EBCDIC.
999999.9+union+all+select+%27R3DM0V3_hvj_injection',null
Специальное значение NULL означает отсутствие данных, констатацию того факта, что значение неизвестно. По умолчанию это значение могут принимать столбцы и переменные любых типов, если только на них не наложено ограничение NOT NULL.
A field with a NULL value is a field with no value. If a field in a table is optional, it is possible to insert a new record or update a record without adding a value to this