VALIDATE_LAYER_WITH_CONTEXT - Rowid and NULL in result table

Question

Hello,
Oracle 10g R2
I performed validity test using VALIDATE_LAYER_WITH_CONTEXT as follow:
CREATE TABLE RESULT_TABLE_CP(SDO_ROWID ROWID, RESULT VARCHAR2(2000));
CALL SDO_GEOM.VALIDATE_LAYER_WITH_CONTEXT('VESSEL_ZONE_GEOMETRY', 'POLYGON', 'RESULT_TABLE_CP');
What puzzled me was the result table contained the rowid and NULL as the result for each geometry. I was expecting to see what the error is, not just NULL.
However when I use VALIDATE_GEOMETRY_WITH_CONTEXT to test the same layer, I got TRUE for all of them, as:
select DISTINCT SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(a.POLYGON,b.DIMINFO)
from VESSEL_ZONE_GEOMETRY a,
USER_SDO_GEOM_METADATA b
where b.TABLE_NAME = 'VESSEL_ZONE_GEOMETRY'
and b.COLUMN_NAME = 'POLYGON'
and a.POLYGON is not null;
SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(A.POLYGON,B.DIMINFO) ------------------------------------------------------------------------------------
TRUE
Any suggestion would be much appreciated!
Thanks, CP

Answer 1

Can you get the geometry by running
select polygon from VESSEL_ZONE_GEOMETRY where rowid = '....';