The EWKT format simply prepends an SRID identifier to the existing WKT formats.
Format
SRID=srid_value;WKT
- srid_value
- An integer value greater than or equal to zero.
Usage Notes
As is the case for WKT, spaces are ignored.
To import or export geospatial data in EWKT format, you must use one of the "SRID" transform groups included with Teradata Database. For more information on transform groups, see ST_Geometry Type Transforms.
Examples: EWKT Format for Geospatial Data
The following are valid geospatial data in EWKT format.
SRID=12;POINT(10 20) SRID=35234;LINESTRING(10 20, 40 50) SRID = 112 ; POINT(10 20)