Image is not displayed after upload

Question

Hello, I have imported an application from oracle APEX 3.0 10g in my express edition APEX 3.0 . In this application you can upload pictures in the database and afterwards show them in a report. in 10g everything works well. In my XE the pictures are not shown(red cross) but were written in the database.
Procedure to select the images from the table:
create or replace procedure emps_image_display (p_emp_id in number)
as
l_mime varchar2(255);
l_length number;
l_file_name varchar2(2000);
lob_loc BLOB;
begin
select mime_type, image, image_name, dbms_lob.getlength(image)
into l_mime, lob_loc, l_file_name, l_length
from emps_images where emp_id = p_emp_id;
owa_util.mime_header(nvl(l_mime,'application/octet'), FALSE );
htp.p('Content-length: ' || l_length);
htp.p('Content-Disposition: filename="' || l_file_name || '"');
owa_util.http_header_close;
wpg_docload.download_file( Lob_loc );
end;
the process has grant on execute
procedure on the page:
begin
delete from emps_images where emp_id = :P6_EMP_ID;
insert into emps_images (image_id, emp_id, image_name, mime_type, image)
select null, :P6_EMP_ID, filename, mime_type, blob_content
from wwv_flow_files where name = :P6_IMAGE_URL;
delete from wwv_flow_files where name = :P6_IMAGE_URL;
end;
The writing of the picture in the database works well, only it is not shown on the page (red cross)
the SQL query to show the pictures in the report:
select e.emp_id, e.last_name, e.first_name, e.phone, e.email, e.location, e.job,
decode(i.image_id, null, 'No Image Found',
'') image
from emps_view e, emps_images i
where e.emp_id = :P10_EMPID
and e.emp_id = i.emp_id(+)
If no entry exists in the table, " No image found " is shown. otherwise ... the red cross :)
the URL to the picture looks as follows:
http://127.0.0.1:8081/apex/WORKSHOP.emps_image_display?p_emp_id=2
I hope, somebody here can help me.

Answer 1

Are you sure, that you granted the privileges for executing EMPS_IMAGE_DISPLAY procedure to the right database user?
In XE (APEX 2.1), the default database user for HTTP access is ANONYMOUS, in other editions it is APEX_PUBLIC_USER.
To check this, create a report on any of your pages with this SQL:
SELECT USER from DUAL
This should show you the username, that you should grant execute to.