ST_MaxZ

Definición

ST_MaxZ toma una geometría como un parámetro de entrada y devuelve la coordenada z máxima.

Sintaxis

sde.st_maxz (g1 sde.st_geometry)

Tipo de devolución

Número

Ejemplo

Oracle

CREATE TABLE maxz_test (id integer, geometry sde.st_geometry);  INSERT INTO MAXZ_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 MAXZ_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_maxz (geometry) Max_Z FROM MAXZ_TEST;          ID      MAX_Z        1901         26       1902         40 

PostgreSQL

CREATE TABLE maxz_test (id integer, geometry sde.st_geometry);  INSERT INTO maxz_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 maxz_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_maxz (geometry)  AS Max_Z FROM maxz_test;          id      max_z        1901         26       1902         40