mysql5.6
https://dev.mysql.com/doc/refman/5.6/en/spatial-relation-functions-object-shapes.html#function_st-distance
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);
(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;
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MySQL-关系代数-并、交、差、等值连接、自然连接、左连接。。。
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