Библиотека собеса по Java | вопросы с собеседований

❓ Что такое денормализация в базах данных?

Денормализация — это процесс преднамеренного добавления избыточности в структуру базы данных для повышения производительности чтения. В отличие от нормализации, цель которой — устранить дублирование и обеспечить целостность, денормализация может включать дублирование данных, объединение таблиц или добавление агрегированных колонок.

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Библиотека собеса по Java

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Create: 2025-07-03
Last Update: 2025-07-08 06:17:50

Библиотека собеса по Java | вопросы с собеседований Telegram | DID YOU KNOW?

Telegram today rolling out an update which brings with it several new features.The update also adds interactive emoji. When you send one of the select animated emoji in chat, you can now tap on it to initiate a full screen animation. The update also adds interactive emoji. When you send one of the select animated emoji in chat, you can now tap on it to initiate a full screen animation. This is then visible to you or anyone else who's also present in chat at the moment. The animations are also accompanied by vibrations. This is then visible to you or anyone else who's also present in chat at the moment. The animations are also accompanied by vibrations.

What is Telegram?

Telegram is a cloud-based instant messaging service that has been making rounds as a popular option for those who wish to keep their messages secure. Telegram boasts a collection of different features, but it’s best known for its ability to secure messages and media by encrypting them during transit; this prevents third-parties from snooping on messages easily. Let’s take a look at what Telegram can do and why you might want to use it.