Extended Well-Known Text Format | Geospatial Data Types | Teradata Vantage - Extended Well-Known Text Format - Advanced SQL Engine - Teradata Database

Geospatial Data Types

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
June 2020
Language
English (United States)
Last Update
2021-01-23
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vci1556127188517.ditamap
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dita:id
B035-1181
lifecycle
previous
Product Category
Teradata Vantageā„¢

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)