CASE WHEN условная логика за 30 секунд

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7 Sep 2025

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На собесе спросят: как сделать условную логику в SQL? Показываю CASE WHEN — «если-то» прямо в запросе: порядок условий, запасной ELSE и проверка NULL через IS NULL. Сохрани шпаргалку. Больше — в бесплатном курсе SQL Academy (ссылка в профиле). #sql #casewhen #базыданных #интервью #analytics #postgresql #mysql #sqlacademy

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