這個字段類型是mysql5.7新增的功能,主要就是解決坐標存儲和距離計算的常見問題
創建表:
CREATE TABLE `service` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`name` varchar(128) NOT NULL DEFAULT '',
`content` varchar(128) NOT NULL DEFAULT '',
`tel` varchar(20) NOT NULL DEFAULT '',
`location` geometry NOT NULL,
PRIMARY KEY (`id`),
KEY `location` (`location`(32))
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8
插入坐標
insert into service (name,content,tel,location)values("陶士涵",'牛逼','18898989898',ST_GeomFromText('POINT(116.28828 40.053257)'));
讀取坐標
select *,astext(location) from service;
查詢距離
SELECT name,content,tel, (st_distance (location,point(116.282459,40.047955) ) *111195) AS distance FROM service ORDER BY distance;
判斷距離
SELECT name,content,tel,astext(location),FLOOR(st_distance (location,point(116.282459,40.047955) ) *111195) AS distance FROM service having distance < 1000 ORDER BY distance;
