ST_GetUnProjectedTransformDefinition(LONG VARCHAR) method

Returns the transform definition of the spatial reference system that is the source of the projection.

Syntax

ST_SpatialRefSys::ST_GetUnProjectedTransformDefinition(LONG VARCHAR transform_definition)

transform_definition – The spatial reference system transform definition text

LONG VARCHAR Returns a text string defining the transform definition of the unprojected spatial reference system.

Example 1 – The following example returns the result +proj=latlong +a=6371000 +b=6371000 +no_defs.

SELECT ST_SpatialRefSys::ST_GetUnProjectedTransformDefinition( '+proj=robin +lon_0=0 +x_0=0 +y_0=0 +a=6371000 +b=6371000 +units=m  no_defs' )

SQL/MM (ISO/IEC 13249-3: 2006) Vendor extension