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Create: 2025-05-05 Update: 2025-07-07 10:39:48

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Пока мы готовим серию постов про сортировку, предлагаем поразмять мозги над одной из задачек.

Перед вами план запроса, который создаёт таблицу с архивными данными продаж старше двух последних недель. На основании этого плана нужно понять, как ускорить запрос, не меняя при этом его текст.

Версия Oracle: 12.2.0.1
Структура индекса из 4 операции: SALE_DT, COSTUMER_ID, RETAILER_ID.

Predicate Information (identified by operation id):
---------------------------------------------------

   4 - access("S"."SALE_DT"<=TRUNC(SYSDATE@!)-14)

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Predicate Information (identified by operation id):
---------------------------------------------------

   4 - access("S"."SALE_DT"<=TRUNC(SYSDATE@!)-14)

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Мини-курс Оптимизация: Быстрый старт 🚀

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