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`)
)
插入
INSERT INTO map (id, address, location) VALUES (1, ‘somewhere’, ST_GeomFromText(‘POINT(121.366961 31.190049)’));
注意必须使用 ST_GeomFromText 函数，且 POINT() 里面是：经度 + 空格 + 纬度
查询
1. 查看经纬度
SELECT address, ST_AsText(location) AS location FROM map;
2. 计算两点之间的距离
SELECT ST_Distance_Sphere(POINT(121.590347, 31.388094),location) AS distant FROM map;
算出来的结果，单位是米注意现在 POINT() 里面经纬度之间是逗号分隔的
3. 查询距离小于 1000m 的地点，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;