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[Решено] Помогите составить запрос

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Привет, немного переделан движок, нужно узнать parent_id зная category_id

Есть таблица category_parent, в ней две колонки parent_id и category_id. Как правильно составить запрос, чтобы узнать значение  parent_id дабы присвоить его переменной.

P.S. в php и sql очень вялые знания

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$query = $this->db->query("SELECT parent_id from " . DB_PREFIX . "category_parent WHERE category_id = " . (int)$category_id);

var_dump($query->row); //Узнаем что именно вернул результат, т.к. я понятия не имею что он вернет.

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а почему не так?

$query = $this->db->query("SELECT parent_id from " . DB_PREFIX . "category_parent WHERE category_id = " .' (int)$category_id)."'";
Edited by afwollis

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Не обязательно передавать Integer значения в кавычках.

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а почему не так?

$query = $this->db->query("SELECT parent_id from " . DB_PREFIX . "category_parent WHERE category_id = " .' (int)$category_id)."'";

потому что колесо вместо руля, который находится на месте крышки багажника, - "как-то неправильно".

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