ST_MinY

定义

ST_MinY 以几何对象为输入参数，返回其最小 y 坐标。

语法

sde.st_miny (g1 sde.st_geometry)

返回类型

数值

示例

Oracle

CREATE TABLE miny_test (id integer, geometry sde.st_geometry);

INSERT INTO MINY_TEST VALUES (
1901,
sde.st_polygon ('polygon zm((110 120 20 3, 110 140 22 3, 120 130 26 4, 110 120 20 3))', 0)
);

INSERT INTO MINY_TEST VALUES (
1902,
sde.st_polygon ('polygon zm((0 0 40 7, 0 4 35 9, 5 4 32 12, 5 0 31 5, 0 0 40 7))', 0)
);

SELECT id, sde.st_miny (geometry) MinY
FROM MINY_TEST;

        ID       MINY

      1901        120
      1902          0

PostgreSQL

CREATE TABLE miny_test (id integer, geometry sde.st_geometry);

INSERT INTO miny_test VALUES (
1901,
sde.st_polygon ('polygon zm((110 120 20 3, 110 140 22 3, 120 130 26 4, 110 120 20 3))', 0)
);

INSERT INTO miny_test VALUES (
1902,
sde.st_polygon ('polygon zm((0 0 40 7, 0 4 35 9, 5 4 32 12, 5 0 31 5, 0 0 40 7))', 0)
);

SELECT id, sde.st_miny (geometry) 
AS MinY
FROM miny_test;

        id       miny

      1901        120
      1902          0