🔥Разбираем SQL на примере PostgreSQL — [40:54]
SQ, как ни странно, используется для управления базами данных (спасибо, кэп). В этом видео автор задел базовые операторы и показал их работу на понятных для новичка примерах.
Если конкретнее, то он рассказал про SELECT, JOIN, GROUP BY, ORDER BY, COALESCE, HAVING, а также затронул перенос схемы, комплексные запросы с несколькими JOIN и другие полезные операции.
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