【发布时间】:2013-04-25 06:34:18
【问题描述】:
SELECT * from vehicle_adv_details
LEFT JOIN vehicle_description on vehicle_adv_details.id=vehicle_description.vehicleid
LEFT JOIN vehicle_extras on vehicle_adv_details.id=vehicle_extras.vehicleid
LEFT JOIN vehicle_technical_features on vehicle_adv_details.id=vehicle_technical_features.vehicleid
LEFT JOIN vehicle_photo on vehicle_adv_details.id=vehicle_photo.vehicleid
) UNIONALL
(SELECT * FROM propertysale_adv_details
LEFT JOIN propertysale_adv_description ON propertysale_adv_details.id = propertysale_adv_description.propertysalesid
LEFT JOIN propertysale_adv_listeragent ON propertysale_adv_details.id = propertysale_adv_listeragent.propertysalesid
LEFT JOIN propertysale_adv_listerowner ON propertysale_adv_details.id = propertysale_adv_listerowner.propertysalesid
LEFT JOIN propertysale_adv_photos ON propertysale_adv_details.id = propertysale_adv_photos.propertysalesid
) UNIONALL
(SELECT * from propertyrent_adv_details
LEFT JOIN propertyrent_description on propertyrent_adv_details.id=propertyrent_description.propertyrentid
LEFT JOIN propertyrent_landlord_details on propertyrent_adv_details.id=propertyrent_landlord_details.propertyrentid
LEFT JOIN propertyrent_photo on propertyrent_adv_details.id=propertyrent_photo.propertyrentid
WHERE advtitle LIKE '%villa%'
)
WHERE advtitle LIKE '%villa%' OR kilometer LIKE '%villa%'
OR price LIKE '%villa%' OR description LIKE '%villa%'
【问题讨论】:
-
这是我的查询...我不会得到任何结果。
-
请帮我出结果
-
所有这些
ropertysaleropertysaleropertysaleropertysaleropertysale让我眼花缭乱。您确定不能使用单个表来代替所有这些大量类似字段的表吗? -
每次选择的列数匹配?否则工会将无法工作
-
* for Select 不是联合的好主意,因为您无法确定表列是否匹配(请参阅@waygood)