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SELECT CAST (miles AS INT) FROM Flights -- convert timestamps to text INSERT INTO mytable (text_column) VALUES ...
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Шпаргалка по SQL инъекциям | DefconRU
11223344) UNION SELECT NULL,NULL,NULL,NULL WHERE 1=2 –- Если нет ошибки, значит синтаксис верный, т.е. используется MS SQL Server.
3) union all select null, null, null, null, null, null, null, null, null, null...
After looking through the whole database as well as the files on the site, I'm nearly 99% positive nothing was harmed, deleted or changed. Which makes me glad to know that I'm knowledgeable enough in my php to know how to prevent these things.
Replacing NULL with 0 in a SQL server query - Stack Overflow
For example, a NULL value for ISNULL is converted to int whereas for COALESCE, you must provide a data type.
mysql - How to handle these 404 errors that look like... - Server Fault
As of a couple of weeks ago, I keep seeing a LOT of 404s that don't even look like links
SQL NULL Values - IS NULL and IS 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
NULL (SQL) — Википедия
NULL в Системах управления базами данных (СУБД) — специальное значение (псевдозначение), которое может быть записано в поле таблицы базы данных (БД). NULL соответствует понятию «пустое поле», то есть «поле, не содержащее никакого значения».