Question

我有用作索引的树表：

link_flavor_and_iceCream具有列：flavor_ID，iceCream_ID
link_color_and_iceCream具有列：color_ID，iceCream_ID
link_fans_and_iceCream有列：fan_ID，iceCream_ID
每个iceCream可以有许多不同的口味，颜色和粉丝

我需要查询所有有香味的冰淇淋＆＃34; vanila＆＃34;或＆＃34;巧克力＆＃34;和颜色＆＃34;粉红色＆＃34;或＆＃34;红色＆＃34;或＆＃34; brown＆＃34;和＆＃34; jack＆＃34;或者＆＃34;乔＆＃34;作为粉丝...

我该怎么做？我怎么能把所有这些放在同一个视图上？

非常感谢!!

Answer 1

鉴于我们不知道你的限制性标记的字段名称或者什么是iceCream表（或者即使你有一个）它看起来像什么......

像这样......

SELECT IC.Name
FROM iceCream IC
INNER JOIN Link_flavor_and_IceCream ICF
 IC.IceCream_ID = ICF.IceCream_ID
 and favor in ('Vanila', 'Chocolate')
INNER JOIN Link_color_AndIceCream ICC
 and ICC.IceCream_Id = IC.IceCream_ID
 and color in ('Pink','Red','Brown')
INNER JOIN Link_Fans_and_IceCream ICFan
 and IC.IceCream_ID = ICFan.IceCream_ID
 and ICFan.Name  in ('Jack','Joe')

或者...

SELECT IC.Name
FROM iceCream IC
INNER JOIN Link_flavor_and_IceCream ICF
 IC.IceCream_ID = ICF.IceCream_ID
INNER JOIN Link_color_AndIceCream ICC
 and ICC.IceCream_Id = IC.IceCream_ID
INNER JOIN Link_Fans_and_IceCream ICFan
 and IC.IceCream_ID = ICFan.IceCream_ID
WHERE
     IFC.favor in ('Vanila', 'Chocolate')
 and ICC.color in ('Pink','Red','Brown')
 and ICFan.Name  in ('Jack','Joe')

或许多其他方式......包括使用或陈述而不是

查询链接到一个表的树表

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