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How to correctly represent empty spatial data (e.g., Linestring Empty) in Oracle Spatial?

yl wFeb 24 2025 — edited Feb 24 2025

Hi everyone,

It's Oracle 23c.

I use sdo_geometry(2002,null,null,sdo_elem_info_array(1,2,1),sdo_ordinate_array()) to represent Linestring empty, then i try this:

Select sdo_geometry(2002,null,null,sdo_elem_info_array(1,2,1),sdo_ordinate_array()).st_isvalid() from dual;

I get 0.

then i try 3-dimension data:

Select sdo_geometry(3002,null,null,sdo_elem_info_array(1,2,1),sdo_ordinate_array()).st_isvalid() from dual;

I get 1.

And I can't get_wkt(). I get ORA-13034.

Added on Feb 24 2025

#spatial

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