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Предназначение команды CHECK в SQL?
Anonymous Quiz
Для проверки индексов на столбцах таблицы.
Для проверки внешних ключей в таблице.
Для проверки сохраненных процедур.
Для установки прав доступа.
Для установки ограничений на обнуляемые значения.
Для установки ограничений на вставляемые значения.
Для выполнения запросов на слепую выборку данных.
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SQL для тестировщика Telegram | DID YOU KNOW?

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What is Telegram?

Telegram’s stand out feature is its encryption scheme that keeps messages and media secure in transit. The scheme is known as MTProto and is based on 256-bit AES encryption, RSA encryption, and Diffie-Hellman key exchange. The result of this complicated and technical-sounding jargon? A messaging service that claims to keep your data safe.Why do we say claims? When dealing with security, you always want to leave room for scrutiny, and a few cryptography experts have criticized the system. Overall, any level of encryption is better than none, but a level of discretion should always be observed with any online connected system, even Telegram.

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Telegram SQL для тестировщика
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