NOP::Nuances of Programming | United States America (US)

Create: 2025-02-27 Update: 2025-07-04 13:56:42

Сразу никогда не бывает очевидно, как перейти от простого SQL-запроса к сложному, особенно если запрос содержит сложные вычисления. Одна из «опасностей» SQL заключается в том, что можно создать исполнимый запрос, но вернуть неверные данные. Например, легко увеличить значение вычисляемого поля, объединив его с несколькими строками. Автор материала показывает, как строить SQL последовательно, чтобы сократить количество ошибок.

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NOP::Nuances of Programming

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