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Что делает оператор EXPLAIN в SQL?
Anonymous Quiz
Анализирует использование индексов в запросе.
Показывает план выполнения запроса.
Оценивает статистику распределения данных.
Анализирует использование памяти.
Проверяет наличие ошибок в запросе.
Контролирует исправление ошибок в запросе.
Выводит информацию о предполагаемом времени выполнения запроса.
Выводит список индексов, используемых при выполнении запроса.
Генерирует отчет о производительности запроса.
Отображает структуру и размер временных таблиц, создаваемых в процессе запроса.
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