PL/SQL portlet with images

Question

We use a Portal Form to load images into the database. The field in the database is a BLOB. We do not know how to display the imagefield in PL/SQL. Can anyone explain to us how we can solve this problem?
Lene & Anniken :o)

Answer 1

procedure query_row(p_empno in varchar2 default null)
is
l_size integer;
l_imedia ordsys.ordimage;
l_tmpblob blob;
begin
htp.init;
select emp_image into l_imedia
from imedia.imtest1 where
empno = p_empno;
if l_imedia.islocal() then
owa_util.mime_header(l_imedia.getmimetype(),false,null);
htp.p('Pragma : no-cache');
htp.p('Cache-control: no-cache');
htp.p('Expires: Thu, 01 Jan 1970 12:00:00 GMT');
htp.p('Content-length: '||l_imedia.getcontentlength());
owa_util.http_header_close;
dbms_lob.createtemporary(l_tmpblob,true);
dbms_lob.copy(l_tmpblob,l_imedia.getcontent(),l_imedia.getcontentlength(),1,1);
wpg_docload.download_file(l_tmpblob);
dbms_lob.freetemporary(l_tmpblob);
else
owa_util.mime_header('text/html',false);
htp.p('Content-length: 0');
owa_util.http_header_close;
end if;
end query_row;
This example retrieves data from ordsys.ordimage datatype.
But if you are storing the data in blob, alter the above code something like the following :
wpg_docload.download_file(<blob_content>)