mysql查詢子查詢循環？

我有一個查詢mysql查詢子查詢循環？

SELECT 
    count(product) as amount, 
    product, 
    sum(price) AS price 
FROM `products` 
WHERE 
    brid = 'broker' 
AND 
    cancelled is null 
GROUP BY product 
WITH ROLLUP

是否可以查詢表得到一個經紀人ID，然後爲每個代理運行查詢，上面寫的是1個查詢？

幾乎像：

SELECT brid FROM membership 
THEN 

SELECT 
    count(product) as amount, 
    product, 
    sum(price) AS price 
FROM `products` 
WHERE 
    brid = membership.brid 
AND 
    cancelled is null 
GROUP BY product 
WITH ROLLUP 

THEN 
SELECT NEXT brid

這可能嗎？我知道如何在PHP中做到這一點，但我更喜歡1查詢可以創建一個數組而不是每個查詢噸。

謝謝亞當。

來源

2012-09-21 adam Kearsley

SELECT 
    count(product) as amount, 
    product, 
    sum(price) AS price 
FROM `products` 
INNER JOIN membership on membership.brid = products.brid 
WHERE 
    cancelled is null 
GROUP BY product 
WITH ROLLUP

來源

2012-09-21 13:49:11 Lukos

當然，您可以GROUP BY「brid」字段和「product」字段。如下文所述，WITH ROLLUP將導致其由「布里德」進行排序，然後通過「產品」：

SELECT 
    brid, 
    count(product) as amount, 
    product, 
    sum(price) AS price 
FROM `products` 
WHERE 
    brid IN (SELECT brid FROM membership) 
AND 
    cancelled is null 
GROUP BY brid, product 
WITH ROLLUP

來源

2012-09-21 13:49:16 PinnyM

在PhpMyAdmin中測試並得到---＃1221 - 錯誤地使用了CUBE/ROLLUP和ORDER BY –

你是對的，'WITH ROLLUP'排除了'ORDER BY'的使用並且已經爲你排序 - 所以你可以跳過ORDER BY子句。更新。 – PinnyM

謝謝！現在正常工作！ –

據我可以從你的例子明白，你需要的是inner join between membership and products on brid

拿下面的例子：

products表：

CREATE TABLE `test` (
    `price` int(11) DEFAULT NULL, 
    `product` varchar(20) DEFAULT NULL, 
    `brid` varchar(20) DEFAULT NULL, 
    `cancelled` varchar(20) DEFAULT NULL 
)

membership表：

CREATE TABLE `membership` (
    `brid` varchar(20) DEFAULT NULL 
)

而下面是我query，你需要：

SELECT 
    t.brid, count(t.product) as amount, 
    t.product, 
    sum(t.price) AS price 
FROM products t, membership m 
WHERE 
    t.brid = m.`brid` 
AND 
    cancelled is null 
GROUP BY product

希望幫助！

來源

2012-09-21 13:55:36 Anshu

mysql查詢子查詢循環？

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