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Что означает NULL в SQL-выражениях
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NULL - это не ноль, это пустота, объясняет на практических примерах Ольга Киселева.
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SQL для тестировщика Telegram | DID YOU KNOW?
Date: | SQL для тестировщика
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.
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