标签：targe set get dex mysql not local type 酒店
创建位置表，并且插入测试数据
/*
Navicat MySQL Data Transfer Source Server : localhost Source Server Version : 80011 Source Host : localhost:3306 Source Database : test Target Server Type : MYSQL Target Server Version : 80011 File Encoding : 65001 Date: 2018-11-07 16:58:27 */SET FOREIGN_KEY_CHECKS = 0;-- ------------------------------ Table structure for location-- ----------------------------DROP TABLEIF EXISTS `location`;CREATE TABLE `location` ( `id` INT (10) UNSIGNED NOT NULL AUTO_INCREMENT, `name` VARCHAR (50) NOT NULL, `longitude` DECIMAL (13, 10) NOT NULL, `latitude` DECIMAL (13, 10) NOT NULL, PRIMARY KEY (`id`), KEY `long_lat_index` (`longitude`, `latitude`)) ENGINE = INNODB AUTO_INCREMENT = 5 DEFAULT CHARSET = utf8;-- ------------------------------ Records of location-- ----------------------------INSERT INTO `location`VALUES ( ‘1‘, ‘广东省深圳市龙岗区坂田街道五和大道万科四季花城北区‘, ‘22.6265210000‘, ‘114.0606880000‘ );INSERT INTO `location`VALUES ( ‘2‘, ‘广东省深圳市龙华区民治(地铁站)‘, ‘22.6175280000‘, ‘114.0406460000‘ );INSERT INTO `location`VALUES ( ‘3‘, ‘广东省深圳市龙华区红山(地铁站)‘, ‘22.6218860000‘, ‘114.0234800000‘ );INSERT INTO `location`VALUES ( ‘4‘, ‘广东省深圳市南山区西丽街道沙河西路名典商旅酒店(深圳西丽店)‘, ‘22.5801670000‘, ‘113.9543000000‘ );#经度:22.626521
#纬度:114.060688#50KM范围SELECT *FROM ( SELECT *, sqrt( ( ( (22.626521 - longitude) * PI() * 12656 * cos( ((114.060688 + latitude) / 2) * PI() / 180 ) / 180 ) * ( (22.626521 - longitude) * PI() * 12656 * cos( ((114.060688 + latitude) / 2) * PI() / 180 ) / 180 ) ) + ( ( (114.060688 - latitude) * PI() * 12656 / 180 ) * ( (114.060688 - latitude) * PI() * 12656 / 180 ) ) ) AS lc FROM location ) locationWHERE lc < 50 ##距离小于50KMORDER BY ##距离小于排序 lc
标签：targe set get dex mysql not local type 酒店
原文地址：https://www.cnblogs.com/mojxtang/p/9986572.html
