Cann't export ORDImage object with ORDSYS.ORDSOURCEExceptions

Question

I have a table used ORDSYS.ORDIMAGE object. Now, i want to export images to file system with PLSQL.
PROCEDURE exp_img(pid IN VARCHAR2) IS
local_image ORDSYS.ORDIMAGE;
filename VARCHAR2(10);
img_location varchar2(200) := '.../living/images/';
ctx RAW(32767) := NULL;
BEGIN
SELECT NEWSPICT
INTO local_image
FROM INFO_DIRECT_IMG
WHERE NUMID = pid;
filename := 'smict.jpg';
if (local_image.isLocal) then
local_image.export(ctx, 'FILE', img_location, filename);
end if;
END exp_img;
The intermedia version is 9.2.0.1.0, and I have granted the permissions to the ORDSYS and ORDPLUGIN. But when i execute the procedure, I caught the ORDSYS.ORDSOURCEExceptions.SOURCE_PLUGIN_EXCEPTION exception.
why?
and how can I fix it?
Thanks!

Answer 1

img_location should be the name of a directory object in Oracle. Read the documentation again. You should see the following commands.
connect sys/<password> as sysdba
create or replace directory my_location as '/some/directory/path';
now the call to export would look like
img.export(ctx, 'FILE', 'MY_LOCATION', 'foo.jpg');
note that MY_LOCATION is uppercase. This is because database object names (like the directory name we created) are automatically upcased in the default.
you can also use your variable like so:
img_location varchar2(200) := 'MY_LOCATION';
note that it references the name of the directory.
then
img.export(ctx, 'FILE', img_location, 'foo.jpg');