#посмотреть
▫️Схема базы данных
▫️Таблицы на схеме базы данных
▫️Столбцы таблиц и типы данных в них на схеме
▫️Связи между таблицами
▫️Типы связей
▫️Примеры таблиц БД онлайн-школы
▫️Пример SQL запроса с JOIN для извлечения данных
▫️Пример использования схемы для объединения трех таблиц
Смотреть видео
BY SQL для тестировщика
To pay the bills, Mr. Durov is issuing investors $1 billion to $1.5 billion of company debt, with the promise of discounted equity if the company eventually goes public, the people briefed on the plans said. He has also announced plans to start selling ads in public Telegram channels as soon as later this year, as well as offering other premium services for businesses and users.
With the help of the Search Filters option, users can now filter search results by type. They can do that by using the new tabs: Media, Links, Files and others. Searches can be done based on the particular time period like by typing in the date or even “Yesterday”. If users type in the name of a person, group, channel or bot, an extra filter will be applied to the searches.
SQL для тестировщика from sa