MySQL怎么计算两坐标距离并排序
程序员文章站
2022-04-16 18:10:10
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环境
MySQL5.6
https://dev.mysql.com/doc/refman/5.6/en/spatial-relation-functions-object-shapes.html#function_st-distance
表结构及数据
DROP TABLE IF EXISTS `locationpoint`; CREATE TABLE `locationpoint` ( `id` int(11) NOT NULL AUTO_INCREMENT, `province` varchar(20) NOT NULL, `city` varchar(20) NOT NULL, `longitude` double(10, 3) NOT NULL, `latitude` double(10, 3) NOT NULL, PRIMARY KEY (`id`) ) ENGINE = InnoDB AUTO_INCREMENT = 1156 DEFAULT CHARSET = utf8;
INSERT INTO `locationpoint` VALUES (1, '山东', '济南', 116.938477, 36.597889), (2, '河北', '石家庄', 114.477539, 38.030786), (3, '浙江', '杭州', 120.058594, 30.334954), (4, '河南', '郑州', 113.629, 34.744), (5, '安徽省', '合肥', 117.170, 31.520);
查询方式
(以内蒙古自治区呼和浩特市为计算中心)
SELECT id, city, longitude, latitude, round( ( st_distance( point(longitude, latitude), point(111.621094, 40.913513) ) / 0.0111 ) * 1000 ) AS distance FROM locationpoint ORDER BY distance;
查询结果
推荐:《mysql教程》
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