The ST_SpatialRefSys type defines routines for working with spatial reference systems.
      Syntax
         
         
            ST_SpatialRefSys type
      
      Members
         
         All members of the ST_SpatialRefSys type, including all inherited members.
         Members of ST_SpatialRefSys:
         
            - 
               ST_CompareWKT(LONG VARCHAR, LONG VARCHAR) – 
               Compares two spatial reference system definitions.
            
- 
               ST_FormatTransformDefinition(LONG VARCHAR) – 
               Returns a formatted copy of the transform definition.
            
- 
               ST_FormatWKT(LONG VARCHAR) – 
               Returns a formatted copy of the Well Known Text (WKT) definition.
            
- 
               ST_GetUnProjectedTransformDefinition(LONG VARCHAR) – 
               Returns the transform definition of the spatial reference system that is the source of the projection.
            
- 
               ST_ParseWKT(VARCHAR(128), LONG VARCHAR) – 
               Retrieves a named element from the Well Known Text (WKT) definition of a spatial reference system.
            
- 
               ST_TransformGeom(
                  ST_Geometry
               , LONG VARCHAR, LONG VARCHAR) – 
               Returns the geometry transformed using the given transform definition.
            
- 
               ST_World(INT) – 
               Returns a geometry that represents all of the points in the spatial reference system.
            
Standards and compatibility
         
         
            SQL/MM (ISO/IEC 13249-3: 2006) 13.1