SQL задачи@sqlquestions P.1309

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SQL задачи@sqlquestions P.1309

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SQL задачи

Запрос: SELECT prod_name FROM products WHERE prod_price...
Как правильно закончить запрос, чтобы проверить столбцы на наличие пустых значений NULL?

Anonymous Quiz

= NULL

= "NULL"

is NULL

LIKE '%'

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