mysql 下 计算 两点 经纬度 之间的距离 含具体sql语句

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for customer
-- ----------------------------
DROP TABLE IF EXISTS `customer`;
CREATE TABLE `customer` (
  `id` int(11) unsigned NOT NULL auto_increment COMMENT \'自增主键\',
  `name` varchar(50) NOT NULL COMMENT \'名称\',
  `lon` double(9,6) NOT NULL COMMENT \'经度\',
  `lat` double(8,6) NOT NULL COMMENT \'纬度\',
  PRIMARY KEY  (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8 COMMENT=\'商户表\';

-- ----------------------------
-- Records of customer
-- ----------------------------
INSERT INTO `customer` VALUES (\'1\', \'天津市区\', \'117.315575\', \'39.133462\');
INSERT INTO `customer` VALUES (\'2\', \'北京市区\', \'116.407999\', \'39.894073\');
INSERT INTO `customer` VALUES (\'3\', \'保定\', \'115.557124\', \'38.853490\');
INSERT INTO `customer` VALUES (\'4\', \'石家庄\', \'114.646458\', \'38.072369\');
INSERT INTO `customer` VALUES (\'5\', \'昌平区1\', \'116.367180\', \'40.009561\');
INSERT INTO `customer` VALUES (\'6\', \'海淀区2\', \'116.313425\', \'39.973078\');
INSERT INTO `customer` VALUES (\'7\', \'海淀区1\', \'116.329236\', \'39.987231\');

/*传入的参数为  纬度 纬度 经度 ASC升序由近至远 DESC 降序 由远到近 */
SELECT
    *,
    ROUND(
        6378.138 * 2 * ASIN(
            SQRT(
                POW(
                    SIN(
                        (
                            40.0497810000 * PI() / 180 - lat * PI() / 180
                        ) / 2
                    ),
                    2
                ) + COS(40.0497810000 * PI() / 180) * COS(lat * PI() / 180) * POW(
                    SIN(
                        (
                            116.3424590000 * PI() / 180 - lon * PI() / 180
                        ) / 2
                    ),
                    2
                )
            )
        ) * 1000
    ) AS juli
FROM
    customer
ORDER BY
    juli ASC