Разширени обобщени полета за суми

Напишете подзаявки, за да получите общите кликвания и продажби за всяка реклама в периода от време. Присъединете се към тях с ad таблица, за да получите името на рекламата и product таблица, за да получите имената на продуктите. Комбинирайте имената на продуктите, като използвате GROUP_CONCAT .

SELECT ad.ad_name, IFNULL(clicks, 0) AS clicks, IFNULL(product_sale, 0) AS product_sale, IFNULL(GROUP_CONCAT(DISTINCT p.product_name), '') AS products
FROM ad
LEFT JOIN (
    SELECT ad_id, SUM(clicks) AS clicks
    FROM ad_insight
    WHERE date BETWEEN '2021-04-23' AND '2021-04-25'
    GROUP BY ad_id
) AS ai ON ai.ad_id = ad.ad_id
LEFT JOIN (
    SELECT ad_id, SUM(sale) AS product_sale
    FROM ads_products AS ap
    LEFT JOIN product_insight AS pi ON pi.product_id = ap.product_id
    WHERE date BETWEEN '2021-04-23' AND '2021-04-25'
    GROUP BY ad_id
) AS pi ON pi.ad_id = ad.ad_id
LEFT JOIN ads_products AS ap ON ap.ad_id = ad.ad_id
LEFT JOIN product AS p ON ap.product_id = p.product_id
GROUP BY ad.ad_id

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