ST_M takes an ST_Point as an input parameter and return its m (measure)-coordinate.
Oracle
sde.st_m (g1 sde.st_point)
PostgreSQL
st_m (g1 st_point)
Oracle
CREATE TABLE m_test (id integer, geometry sde.st_point);
INSERT INTO m_test VALUES (
1,
sde.st_point (2, 3, 32, 5, 0)
);
INSERT INTO m_test VALUES (
2,
sde.st_point (4, 5, 20, 4, 0)
);
INSERT INTO m_test VALUES (
3,
sde.st_point (3, 8, 23, 7, 0)
);
SELECT id, sde.st_m (geometry) M_COORD
FROM m_test;
ID M_COORD
1 5
2 4
3 7
PostgreSQL
CREATE TABLE m_test (id integer, geometry st_point);
INSERT INTO m_test VALUES (
1,
st_point (2, 3, 32, 5, 0)
);
INSERT INTO m_test VALUES (
2,
st_point (4, 5, 20, 4, 0)
);
INSERT INTO m_test VALUES (
3,
st_point (3, 8, 23, 7, 0)
);
SELECT id, st_m (geometry) AS M_COORD
FROM m_test;
id m_coord
1 5
2 4
3 7
