I want to compare the signature of a BLOB object (an image) with some stored signatures in a PHOTO table.
I don't want to store the ORDImage and ORDImageSignature objects of the BLOB, but I want to generate it on the fly.
So my question is;
can I init an ORDImageSignature object like that ? :
img_sign := ORDSYS.ORDImageSignature.init();
I get :
ORA-29400: data cartridge error
IMG-00925: unable to write to the ORDImageSignature object
ORA-22275: invalid LOB locator specified
It is possible with ORDimage (img_obj := ORDSYS.ORDImage.init(); works) so why not with ORDImageSignature ?