mysql空间数据相关操作

Posted 2020-06-16

建表语句：

CREATE TABLE ts.points
    (
    name        VARCHAR (20) NOT NULL,
    location    POINT NOT NULL,
    description VARCHAR (200)    
    );

添加记录如下：

INSERT INTO Points (name, location) VALUES ( ‘p1‘ , GeomFromText( ‘ POINT(10 20) ‘ ) )
INSERT INTO Points (name, location) VALUES ( ‘p2‘ , GeomFromText( ‘ POINT(11 30) ‘ ) )
INSERT INTO Points (name, location) VALUES ( ‘p3‘ , GeomFromText( ‘ POINT(10 21) ‘ ) )

查询操作如下：

SELECT NAME, ASTEXT(LOCATION),X(LOCATION),Y(LOCATION) FROM POINTS

查询所有记录离指定点的距离

SELECT *,ROUND(6378.138*2*ASIN(SQRT(POW(SIN( (X(LOCATION)*PI()/180-10*PI()/180)/2),2)+COS(X(LOCATION)*PI()/180)*COS(10*PI()/180)* POW(SIN( (Y(LOCATION)*PI()/180-20*PI()/180)/2),2)))*1000) AS DISTANCE FROM POINTS ORDER BY DISTANCE ASC

注：指定点信息（10，20），ps:10为X（经度），20为Y(纬度)

查询附近100公里数据：

SELECT  name ,X(LOCATION),Y(LOCATION)
    FROM    points
    WHERE   MBRContains
                    (
                    LineString
                            (
                            Point
                                    (
                                    10 + 100 / ( 111.1 / COS(RADIANS(104.067221))),
                                    20 + 100 / 111.1
                                    ),
                            Point
                                    (
                                    10 - 100 / ( 111.1 / COS(RADIANS(104.067221))),
                                       20 - 100 / 111.1
                                    ) 
                            ),
                    location
                    )

目标点坐标为（10，20）