ST_SRID

Definition

ST_SRID takes a geometry object and returns its spatial reference ID.

Syntax

Oracle and PostgreSQL

sde.st_srid (geometry1 sde.st_geometry)

SQLite

st_srid (geometry1 geometryblob)

Return type

Integer

Examples

The following table is created:

In the next statement, a point geometry located at coordinate (10.01, 50.76) is inserted into the geometry column g1. When the point geometry is created, it is assigned the SRID value of 4326.

The ST_SRID function returns the spatial reference ID of the geometry just entered.

Oracle

CREATE TABLE srid_test (g1 sde.st_geometry);

INSERT INTO SRID_TEST VALUES (
 sde.st_geometry ('point (10.01 50.76)', 4326)
);

SELECT sde.st_srid (g1) SRID_G1
 FROM SRID_TEST;

SRID_G1

4326

PostgreSQL

CREATE TABLE srid_test (g1 sde.st_geometry);

INSERT INTO srid_test VALUES (
 sde.st_point ('point (10.01 50.76)', 4326)
);

SELECT sde.st_srid (g1) 
 AS SRID_G1
 FROM srid_test;

srid_g1

4326

SQLite

CREATE TABLE srid_test (id integer);

SELECT AddGeometryColumn(
 NULL,
 'srid_test',
 'g1',
 4326,
 'point',
 'xy',
 'null'
);

INSERT INTO srid_test VALUES (
 1,
 st_point ('point (10.01 50.76)', 4326)
);

SELECT st_srid (g1) 
 AS "SRID"
 FROM srid_test;

SRID

4326