ST_LineString

Definition

ST_LineString is an accessor function that constructs a linestring from a well-known text representation.

Note:

When creating spatial tables that will be used with ArcGIS, it is best to create the column as the geometry supertype (for example, ST_Geometry) rather than specifying an ST_Geometry subtype, such as ST_LineString.

Syntax

Oracle

sde.st_linestring (wkt clob, srid integer)

PostgreSQL

sde.st_linestring (wkt text, srid integer)
sde.st_linestring (esri_shape bytea, srid integer)

SQLite

st_linestring (wkt text, srid int32)

Return type

ST_LineString

Example

Oracle

CREATE TABLE lines_test (
 id smallint,
 geometry sde.st_geometry
);
 
INSERT INTO LINES_TEST (id, geometry) VALUES (
 1901,
 sde.st_linestring ('linestring (750 150, 750 750)', 4326)
);

SELECT id, sde.st_astext (geometry) Linestring
 FROM   LINES_TEST;

  ID  LINESTRING

1901  LINESTRING  (750.00000000 150.00000000, 
750.00000000 750.00000000)

PostgreSQL

CREATE TABLE lines_test (
 id serial,
 geometry sde.st_geometry
);
 
INSERT INTO lines_test (geometry) VALUES (
 sde.st_linestring ('linestring (750 150, 750 750)', 4326)
);

SELECT id, sde.st_astext (geometry)
 AS Linestring
 FROM lines_test;

  id  linestring

  1  LINESTRING  (750 150, 750 750)

SQLite

CREATE TABLE lines_test (
 id integer primary key autoincrement not null
);

SELECT AddGeometryColumn (
 NULL,
 'lines_test',
 'geometry',
 4326,
 'linestring',
 'xy',
 'null'
);
 
INSERT INTO lines_test (geometry) VALUES (
 st_linestring ('linestring (750 150, 750 750)', 4326)
);

SELECT id, st_astext (geometry)
 AS "Linestring"
 FROM lines_test;

  id  linestring

  1  LINESTRING  (750.00000000 150.00000000, 750.00000000 750.00000000)