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ST_MinY

Definition

ST_MinY takes a geometry as an input parameter and returns its minimum y-coordinate.

Syntax

Oracle and PostgreSQL

sde.st_miny (geometry1 sde.st_geometry)

SQLite

st_miny (geometry1 geometryblob)

Return type

Oracle and PostgreSQL

Number

SQLite

Double precision

Example

The table, miny_test, is created and two polygons inserted to it. ST_MinY is then run to determine the minimum y-coordinate value in each polygon.

PostgreSQL

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))', 4326)
);

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))', 4326)
);

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))', 4326)
);

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))', 4326)
);

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

        id       miny

      1901        120
      1902          0

SQLite

CREATE TABLE miny_test (
 id integer
);

SELECT AddGeometryColumn (
 NULL,
 'miny_test',
 'geometry',
 4326,
 'polygonzm',
 'xyzm',
 'null'
);

INSERT INTO miny_test VALUES (
 101,
 st_polygon ('polygon zm((110 120 20 3, 110 140 22 3, 120 130 26 4, 110 120 20 3))', 4326)
);

INSERT INTO miny_test VALUES (
 102,
 st_polygon ('polygon zm((0 0 40 7, 0 4 35 9, 5 4 32 12, 5 0 31 5, 0 0 40 7))', 4326)
);

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

id       MinY

101      120.0
102        0.0

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