Update georaster over dblink (SDO_GEOR.COPY)

Question

Hi all
Is it possible to update a georaster object using as source another georaster from a remote database?
I'm on 11g2
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
I tried:
DECLARE
cnt number :=0;
gr1 sdo_georaster;
gr2 sdo_georaster;
BEGIN
for gr in ( select georid, from ortho.gr_ortho1@newaspdb )
loop
INSERT INTO GR_ORTHO1
VALUES ( gr.georid, gr.map_id, SDO_GEOR.init ('GR_ORTHO1_RDT',gr.georid) )
RETURNING geor INTO gr2;
select geor into gr1 from ortho.gr_ortho1@newaspdb where georid=gr.georid;
--> here I get the error
SDO_GEOR.COPY (gr1, gr2);
UPDATE GR_ORTHO1
SET geor = gr2
WHERE georid = gr.georid;
COMMIT;
end loop;
END;
I get the error:
ORA-13475: Μη αποδεκτό αντικείμενο GeoRaster εξόδου
ORA-00942: πίνακας ή όψη δεν υπάρχει
ORA-06512: σε "MDSYS.MD", γραμμή 1723
ORA-06512: σε "MDSYS.MDERR", γραμμή 8
ORA-06512: σε "MDSYS.SDO_GEOR", γραμμή 451
ORA-06512: σε "MDSYS.SDO_GEOR", γραμμή 1055
ORA-06512: σε γραμμή 21
But, when I use a local source table, the code runs just fine...
Thanks in advance for your time,
Greg
Edited by: user12065678 on May 23, 2012 4:50 PM

Answer 1

Hi Greg,
Database link is not supported by the GeoRaster routines. Therefore, you'll have to use either the Data Pump Export and Import utilities or the original Export and Import utilities to transfer GeoRaster data between databases.
In addition, you may use gdal_translate (with the georaster driver) to directly transport a georaster from one database to another - not very easy to script the commandline though if you have many georaster objects.
regards,
Jeffrey