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▪️Схема базы данных
▪️Таблицы на схеме базы данных
▪️Столбцы таблиц и типы данных в них на схеме базы данных
▪️Связи между таблицами на схеме базы данных
▪️Типы связей между таблицами
▪️Примеры таблиц базы данных онлайн-школы
▪️Пример SQL запроса с JOIN для извлечения данных из таблиц онлайн-школы
▪️Пример использования схемы базы данных для объединения трех таблиц
The easiest way to hide texts from view in Telegram without deleting them is to achieve them, although the process requires a few extra steps to complete. Follow the instructions below to do so on both mobile and PC. Open the Telegram mobile app (Android | iOS) and locate the convo you wish to archive, but don’t tap on it. Long-press it until you see a green checkmark appear next to the contact’s profile picture. A few buttons will show up in the upper-right corner as well. Select the “Archive” icon.On PC, you’ll need to right-click on the conversation on the right side of the display and select the “Archive” option.
With Telegram, you can send messages, photos, videos and files of any type (doc, zip, mp3, etc), as well as create groups for up to 200,000 people or channels for broadcasting to unlimited audiences. You can write to your phone contacts and find people by their usernames. As a result, Telegram is like SMS and email combined — and can take care of all your personal or business messaging needs. In addition to this, we support end-to-end encrypted voice calls.
Telegram is a messaging app with a focus on speed and security, it’s super-fast, simple and free. You can use Telegram on all your devices at the same time — your messages sync seamlessly across any number of your phones, tablets or computers.
Telegram is for everyone who wants fast and reliable messaging and calls. Business users and small teams may like the large groups, usernames, desktop apps and powerful file sharing options. You can appoint admins with advanced tools to help these communities prosper in peace. Public groups can be joined by anyone and are powerful platforms for discussions and collecting feedback.In case you're more into pictures, Telegram has animated gif search, a state of the art photo editor, and an open sticker platform (find some cool stickers here or here). What's more, there is no need to worry about disk space on your device. With Telegram's cloud support and cache management options, Telegram can take up nearly zero space on your phone.
Unlike WhatsApp, Telegram is a cloud-based messenger with seamless sync. As a result, you can access your messages from several devices at once, including tablets and computers, and share an unlimited number of photos, videos and files (doc, zip, mp3, etc.) of up to 2 GB each. And if you don't want to store all that data on your device, you can always keep it in the cloud.Thanks to our multi-data center infrastructure and encryption, Telegram is faster and way more secure. On top of that, Telegram is free and will stay free — no ads, no subscription fees, forever.
Yes! Voice calls are currently available to users around the world.
Many modern travelers appear to struggle with managing various aspects of their finances simultaneously while abroad, such as banking, budgeting, investing, trading, and saving. It is important to have apps installed on the device that will help you carry out these necessary tasks.
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