SQL задачи@sqlquestions P.1365

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SQL задачи@sqlquestions P.1365

SQLQUESTIONS Telegram 1365

SQL задачи

Что вернёт код сверху?

Anonymous Quiz

Ошибку, так как DISTINCT нельзя использовать в COUNT()

Количество товаров в заказах

Количество заказов по полу покупателей

Количество уникальных покупателей по полу

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