提取特定束產品訂單

Question

如何可以提取從下表中特定束產品訂單。例如，如果我想提取產品Wireless Mouse已被用作捆綁產品的所有訂單。

期待結果1：

 
    orders_id  product_name  qty  
     1000  Wireless Mouse  1 
     1000  Laptop    1 
     1001  Wireless Mouse  3 
     1001  PC     3 
     1003  Wireless Mouse  4 
     1003  IPAD    4 

第二個問題：

，如果我想只提取產品的訂單，其與「無線鼠標」作爲包我該怎麼辦呢？

期待結果2：

 
    orders_id  product_name  qty  
     1000  Laptop    1 
     1001  PC     3  
     1003  IPAD    4 

如果可能的話，請幫我瞭解以下信息：

，如果我想提取它們與「無線鼠標」，僅使用「筆記本」的訂單作爲捆綁我該怎麼做？

期待結果3：

 
    orders_id  product_name  qty  
     1000  Laptop    1 

實施例的數據：

表1：訂單

 
    id customer_id  order_price purchase_date 
    1000 1     203  12/6/2011 
    1001 2     304  12/6/2011 
    1002 1     1000 12/6/2011 
    1003 1     233  12/6/2011 
    1004 1     44  12/7/2011 
    1005 3     50  12/7/2011 
    1006 4     67  12/7/2011 
    1007 5     99  12/7/2011 
    1008 6     299  12/7/2011 
    1009 7     199  12/7/2011 

表2：客戶

 

    id email       name 
    1 aa@dealboard.com.au   james 
    2 bb@dealboard.com.au   Ryan 
    3 cc@live.com.au     Sili 
    4 dd@acgglobal.com    Mame 
    5 ee.heinrich@det.nsw.edu.au  Kane 
    6 ff@optusnet.com.au    Kratos 
    7 ssy@hotmail.com    Kim 

表3：產品

 

    id name 
    1 Laptop 
    2 PC 
    3 Wireless Mouse 
    4 IPAD 
    5 iphone 
    6 Wireless Keyboard 
    7 Printer 
    8 Glaxy S3 
    9 Scanner 
    10 PS3 

表4：product_orders

 
    id  orders_id product_id qty 
     1 1000  1   1 
     2 1000  3   1 
     3 1001  2   3 
     4 1001  3   3 
     5 1003  4   4 
     6 1003  3   4 
     7 1004  5   1 
     8 1005  6   1 
     9 1007  7   2 
     10 1008  8   1 

對不起你們，我今天問太多。

Answer 1

對於問題1

號正如你可以看到下面，查詢嵌套。

子查詢2獲取其上有Wireless Mouse的所有orders_id。
子查詢1個計數的每個Orders_ID其中Wireless Mouse是本記錄的數目。
主查詢從products_orders和products

 
Main Query 
    -- Subquery 1 
    --- Subquery 2 

查詢聯接子查詢。

SELECT aaa.orders_id, bbb.name, aaa.qty 
FROM  products_orders aaa 
     INNER JOIN products bbb 
      ON bbb.id = aaa.product_id 
     INNER JOIN 
      (
      SELECT aa.ORDERS_ID 
      FROM products_orders aa 
        INNER JOIN 
        (
         SELECT orders_id 
         FROM products_orders a 
           INNER JOIN products b 
           ON b.id = a.product_id 
         WHERE name = 'Wireless Mouse' 
        ) bb ON aa.orders_id = bb.orders_id 
      GROUP BY aa.ORDERS_ID 
      HAVING COUNT(*) > 1 
     ) ccc ON aaa.orders_id = ccc.orders_id 
ORDER BY aaa.orders_ID 

• SQLFiddle Demo

對於題目2

從Question No 1，你可以在WHERE子句添加附加條件來篩選所有記錄而不Wireless Mouse

... 
WHERE bbb.name <> 'Wireless Mouse' 

查詢，

SELECT aaa.orders_id, bbb.name, aaa.qty 
FROM  products_orders aaa 
     INNER JOIN products bbb 
      ON bbb.id = aaa.product_id 
     INNER JOIN 
      (
      SELECT aa.ORDERS_ID 
      FROM products_orders aa 
        INNER JOIN 
        (
         SELECT orders_id 
         FROM products_orders a 
           INNER JOIN products b 
           ON b.id = a.product_id 
         WHERE name = 'Wireless Mouse' 
        ) bb ON aa.orders_id = bb.orders_id 
      GROUP BY aa.ORDERS_ID 
      HAVING COUNT(*) > 1 
     ) ccc ON aaa.orders_id = ccc.orders_id 
WHERE bbb.name <> 'Wireless Mouse' 

• SQLFiddle Demo

對於題目3

就像問題2號，添加額外的條件

... 
WHERE bbb.name <> 'Wireless Mouse' AND 
     bbb.name = 'Laptop' 

查詢，

SELECT aaa.orders_id, bbb.name, aaa.qty 
FROM  products_orders aaa 
     INNER JOIN products bbb 
      ON bbb.id = aaa.product_id 
     INNER JOIN 
      (
      SELECT aa.ORDERS_ID 
      FROM products_orders aa 
        INNER JOIN 
        (
         SELECT orders_id 
         FROM products_orders a 
           INNER JOIN products b 
           ON b.id = a.product_id 
         WHERE name = 'Wireless Mouse' 
        ) bb ON aa.orders_id = bb.orders_id 
      GROUP BY aa.ORDERS_ID 
      HAVING COUNT(*) > 1 
     ) ccc ON aaa.orders_id = ccc.orders_id 
WHERE bbb.name <> 'Wireless Mouse' AND 
     bbb.name = 'Laptop' 

• SQLFiddle Demo