MySQL的geometry范例处置惩罚经纬度间隔的要领引见【MySQL教程】,距离计算,经纬度坐标,mysql
建表
CREATE TABLE `map` ( `id` int(11) NOT NULL, `address` varchar(255) NOT NULL DEFAULT '', `location` geometry NOT NULL, PRIMARY KEY (`id`), SPATIAL KEY `idx_location` (`location`) )
插进去
INSERT INTO map (id, address, location) VALUES (1, 'somewhere', ST_GeomFromText('POINT(121.366961 31.190049)'));
注重必需运用ST_GeomFromText
函数,且POINT()
内里是:经度+空格+纬度
查询
1. 检察经纬度
SELECT address, ST_AsText(location) AS location FROM map;
2. 盘算两点之间的间隔
SELECT ST_Distance_Sphere(POINT(121.590347, 31.388094),location) AS distant FROM map;
算出来的效果,单元是米
注重如今POINT()内里经纬度之间是逗号分开的
3. 查询间隔小于1000m的所在,并由远及近排序
SELECT id, address, ST_Distance_Sphere(POINT(121.590347, 31.388094),location) AS distant FROM map WHERE ST_Distance_Sphere(POINT(121.590347, 31.388094),location) < 1000 ORDER BY distant;
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