#посмотреть
▫️Что такое индексация
▫️Для чего нужна
▫️Как работает
▫️Двоичный поиск
▫️Что такое план выполнения запроса
▫️Когда лучше использовать индексы
▫️Когда лучше НЕ использовать
▫️Что такое кластеризованный и некластеризованный индекс
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.
The campaign, which security firm Check Point has named Rampant Kitten, comprises two main components, one for Windows and the other for Android. Rampant Kitten’s objective is to steal Telegram messages, passwords, and two-factor authentication codes sent by SMS and then also take screenshots and record sounds within earshot of an infected phone, the researchers said in a post published on Friday.
SQL для тестировщика from ua