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...
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...
9. Оператор UNION С оператором UNION можно делать запросы к пересечению таблиц.
Searches web pages, images, PDF, MS Office and other file types in all the major languages, and includes advanced search features, news, maps and other services.
ReferenceEquals already handles the case when both arguments are null — MSDN states "true if objA is the same instance as objB or if both are null; otherwise, false." regarting its return value.
Example: (MySQL): SELECT * from table where id = 1 union select 1,2,3 Example: (PostgreSQL): SELECT * from table where id = 1; select 1,2,3
Гугл Транслейт.
Войдите в аккаунт и добавьте его в плейлист.
Специальное значение NULL означает отсутствие данных, констатацию того факта, что значение неизвестно.