SELECT有两个AND条件
我想在MySQL中使用SELECT语句，有两个AND条件。这是我的表和插入，后跟select语句。我没有从select语句中得到任何结果。
--
-- Table structure for table `indextable`
--
CREATE TABLE `indextable` (
`post_id` bigint(40) NOT NULL,
`key` varchar(20) NOT NULL,
`value` varchar(20) NOT NULL,
`cat_id` int(11) NOT NULL,
KEY `key_2` (`key`),
KEY `value_2` (`value`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
--
-- Dumping data for table `indextable`
--
INSERT INTO `indextable` VALUES (390, 'doors', '360', 398);
INSERT INTO `indextable` VALUES (390, 'body_type', '347', 398);
INSERT INTO `indextable` VALUES (390, 'seller_type', '11', 398);
INSERT INTO `indextable` VALUES (390, 'mechanical_condition', '6', 398);
INSERT INTO `indextable` VALUES (390, 'body_condition', '1', 398);
INSERT INTO `indextable` VALUES (390, 'kilometers', '', 398);
INSERT INTO `indextable` VALUES (390, 'year', '2012', 398);
INSERT INTO `indextable` VALUES (390, 'mobile', '', 398);
INSERT INTO `indextable` VALUES (390, 'price', '111111111111', 398);
INSERT INTO `indextable` VALUES (388, 'city', 'localhost', 398);
INSERT INTO `indextable` VALUES (388, 'description', '<!--:en-->dddddddddd', 398);
INSERT INTO `indextable` VALUES (388, 'title', '<!--:en-->555 ', 398);
INSERT INTO `indextable` VALUES (388, 'categories_name', 'Cars souq', 398);
INSERT INTO `indextable` VALUES (388, 'images', 'http://localhost/wor', 398);
INSERT INTO `indextable` VALUES (388, 'fuel_type', '380', 398);
INSERT INTO `indextable` VALUES (388, 'warranty', '725', 398);
INSERT INTO `indextable` VALUES (388, 'horsepower', '387', 398);
INSERT INTO `indextable` VALUES (388, 'transmission_type', '377', 398);
INSERT INTO `indextable` VALUES (388, 'color', '707', 398);
INSERT INTO `indextable` VALUES (388, 'no_of_cylinders', '365', 398);
INSERT INTO `indextable` VALUES (388, 'doors', '360', 398);
INSERT INTO `indextable` VALUES (388, 'body_type', '347', 398);
INSERT INTO `indextable` VALUES (388, 'seller_type', '11', 398);
INSERT INTO `indextable` VALUES (388, 'mechanical_condition', '6', 398);
INSERT INTO `indextable` VALUES (388, 'body_condition', '1', 398);
INSERT INTO `indextable` VALUES (388, 'kilometers', '', 398);
INSERT INTO `indextable` VALUES (388, 'year', '2012', 398);
INSERT INTO `indextable` VALUES (388, 'mobile', '', 398);
INSERT INTO `indextable` VALUES (388, 'price', '3333', 398);
INSERT INTO `indextable` VALUES (390, 'no_of_cylinders', '365', 398);
INSERT INTO `indextable` VALUES (390, 'color', '707', 398);
INSERT INTO `indextable` VALUES (390, 'transmission_type', '377', 398);
INSERT INTO `indextable` VALUES (390, 'horsepower', '387', 398);
INSERT INTO `indextable` VALUES (390, 'warranty', '725', 398);
INSERT INTO `indextable` VALUES (390, 'fuel_type', '380', 398);
INSERT INTO `indextable` VALUES (390, 'images', '', 398);
INSERT INTO `indextable` VALUES (390, 'categories_name', 'Cars souq', 398);
INSERT INTO `indextable` VALUES (390, 'title', '<!--:en-->ddddddddd<', 398);
INSERT INTO `indextable` VALUES (390, 'description', '<!--:en-->dddddddddd', 398);
INSERT INTO `indextable` VALUES (390, 'city', 'localhost', 398);
INSERT INTO `indextable` VALUES (392, 'price', '133', 398);
INSERT INTO `indextable` VALUES (392, 'mobile', '', 398);
INSERT INTO `indextable` VALUES (392, 'year', '2012', 398);
INSERT INTO `indextable` VALUES (392, 'kilometers', '222', 398);
INSERT INTO `indextable` VALUES (392, 'body_condition', '1', 398);
INSERT INTO `indextable` VALUES (392, 'mechanical_condition', '6', 398);
INSERT INTO `indextable` VALUES (392, 'seller_type', '11', 398);
INSERT INTO `indextable` VALUES (392, 'body_type', '347', 398);
INSERT INTO `indextable` VALUES (392, 'doors', '360', 398);
INSERT INTO `indextable` VALUES (392, 'no_of_cylinders', '365', 398);
INSERT INTO `indextable` VALUES (392, 'color', '707', 398);
INSERT INTO `indextable` VALUES (392, 'transmission_type', '377', 398);
INSERT INTO `indextable` VALUES (392, 'horsepower', '387', 398);
INSERT INTO `indextable` VALUES (392, 'warranty', '725', 398);
INSERT INTO `indextable` VALUES (392, 'fuel_type', '380', 398);
INSERT INTO `indextable` VALUES (392, 'images', '', 398);
INSERT INTO `indextable` VALUES (392, 'categories_name', 'Cars souq', 398);
INSERT INTO `indextable` VALUES (392, 'title', '<!--:en-->ddddddddd<', 398);
INSERT INTO `indextable` VALUES (392, 'description', '<!--:en-->dddddddddd', 398);
INSERT INTO `indextable` VALUES (392, 'city', 'localhost', 398);
INSERT INTO `indextable` VALUES (393, 'price', '111111111111', 398);
INSERT INTO `indextable` VALUES (393, 'mobile', '', 398);
INSERT INTO `indextable` VALUES (393, 'year', '2012', 398);
INSERT INTO `indextable` VALUES (393, 'kilometers', '', 398);
INSERT INTO `indextable` VALUES (393, 'body_condition', '1', 398);
INSERT INTO `indextable` VALUES (393, 'mechanical_condition', '6', 398);
INSERT INTO `indextable` VALUES (393, 'seller_type', '11', 398);
INSERT INTO `indextable` VALUES (393, 'body_type', '347', 398);
INSERT INTO `indextable` VALUES (393, 'doors', '360', 398);
INSERT INTO `indextable` VALUES (393, 'no_of_cylinders', '365', 398);
INSERT INTO `indextable` VALUES (393, 'color', '707', 398);
INSERT INTO `indextable` VALUES (393, 'transmission_type', '377', 398);
INSERT INTO `indextable` VALUES (393, 'horsepower', '387', 398);
INSERT INTO `indextable` VALUES (393, 'warranty', '725', 398);
INSERT INTO `indextable` VALUES (393, 'fuel_type', '380', 398);
INSERT INTO `indextable` VALUES (393, 'images', '', 398);
INSERT INTO `indextable` VALUES (393, 'categories_name', 'Cars souq', 398);
INSERT INTO `indextable` VALUES (393, 'title', '<!--:en-->ddddddddd<', 398);
INSERT INTO `indextable` VALUES (393, 'description', '<!--:en-->dddddddddd', 398);
INSERT INTO `indextable` VALUES (393, 'city', 'localhost', 398);
INSERT INTO `indextable` VALUES (398, 'price', '11333', 398);
INSERT INTO `indextable` VALUES (398, 'mobile', '', 398);
INSERT INTO `indextable` VALUES (398, 'year', '2012', 398);
INSERT INTO `indextable` VALUES (398, 'kilometers', '', 398);
INSERT INTO `indextable` VALUES (398, 'body_condition', '1', 398);
INSERT INTO `indextable` VALUES (398, 'mechanical_condition', '6', 398);
INSERT INTO `indextable` VALUES (398, 'seller_type', '11', 398);
INSERT INTO `indextable` VALUES (398, 'body_type', '347', 398);
INSERT INTO `indextable` VALUES (398, 'doors', '360', 398);
INSERT INTO `indextable` VALUES (398, 'no_of_cylinders', '365', 398);
INSERT INTO `indextable` VALUES (398, 'color', '707', 398);
INSERT INTO `indextable` VALUES (398, 'transmission_type', '377', 398);
INSERT INTO `indextable` VALUES (398, 'horsepower', '387', 398);
INSERT INTO `indextable` VALUES (398, 'warranty', '725', 398);
INSERT INTO `indextable` VALUES (398, 'fuel_type', '380', 398);
INSERT INTO `indextable` VALUES (398, 'images', 'http://localhost/wor', 398);
INSERT INTO `indextable` VALUES (398, 'categories_name', 'Cars souq', 398);
INSERT INTO `indextable` VALUES (398, 'title', '<!--:en-->aaaaaaaaaa', 398);
INSERT INTO `indextable` VALUES (398, 'description', '<!--:en-->aaaaaaaaaa', 398);
INSERT INTO `indextable` VALUES (398, 'city', 'localhost', 398);
SELECT distinct post_id FROM indextable as i WHERE ( i.key ='price' AND i.value BETWEEN 12 AND 1000 ) AND ( i.key ='year' AND i.value=2012 )
注意：当我只使用第一个条件或仅使用第二个条件时，我得到一个结果。
我想执行这样的查询：
SELECT distinct post_id
FROM indextable as i
WHERE ( i.key ='price' AND i.value BETWEEN 12 AND 1000 )
AND ( i.key ='year' AND i.value=2012 )
AND ( i.key ='body_condition' AND i.value=1 )
AND ( i.key ='mechanical_condition' AND i.value=6 )
AND ( i.key ='seller_type' AND i.value=11 )
AND ( i.key ='body_type' AND i.value=347 )
AND ( i.key ='doors' AND i.value=360 )
AND ( i.key ='no_of_cylinders' AND i.value=365 )
AND ( i.key ='color' AND i.value=707 )
AND ( i.key ='transmission_type' AND i.value=377 )
AND ( i.key ='horsepower' AND i.value=387 )
AND ( i.key ='warranty' AND i.value=725 )
AND ( i.key ='fuel_type' AND i.value=380 )
2 个答案:
答案 0 :(得分：1)
那是因为你的情况不对。
SELECT distinct post_id FROM indextable as i
WHERE ( i.key ='price' AND i.value BETWEEN 12 AND 1000 )
AND ( i.key ='year' AND i.value=2012 )
与使用
相同 SELECT distinct post_id FROM indextable as i
WHERE i.key ='price' AND i.value BETWEEN 12 AND 1000
AND i.key ='year' AND i.value=2012
我认为你尝试做的是
SELECT distinct post_id FROM indextable as i
WHERE ( i.key ='price' AND i.value BETWEEN 12 AND 1000 )
OR ( i.key ='year' AND i.value=2012 )
答案 1 :(得分：0)
.... WHERE ( i.key ='price' AND i.value BETWEEN 12 AND 1000 ) AND
( i.key ='year' AND i.value=2012 )
表示i.key的值必须是同一行中的“price”和“year”。这是不可能的，因此没有结果！
更改为
.... WHERE ( i.key ='price' AND i.value BETWEEN 12 AND 1000 ) OR
( i.key ='year' AND i.value=2012 )
相关问题
最新问题
- 我写了这段代码，但我无法理解我的错误
- 我无法从一个代码实例的列表中删除 None 值，但我可以在另一个实例中。为什么它适用于一个细分市场而不适用于另一个细分市场？
- 是否有可能使 loadstring 不可能等于打印？卢阿
- java中的random.expovariate()
- Appscript 通过会议在 Google 日历中发送电子邮件和创建活动
- 为什么我的 Onclick 箭头功能在 React 中不起作用？
- 在此代码中是否有使用“this”的替代方法？
- 在 SQL Server 和 PostgreSQL 上查询，我如何从第一个表获得第二个表的可视化
- 每千个数字得到
- 更新了城市边界 KML 文件的来源？