Report to display a picture from a blob column

hi all
i have a problem :please help
environment: oracle AS 10.1.2.0.2 portal version 10.1.4
i have a slq report:
select field1,field2...,,
decode(cd.photo, empty_blob(),
'<img src="MYCS.show_img?p_field=IMG&p_rowid=NO_CHILD_PIC">',
decode(cd.SOURCE, 'MAIN',
'<img src="MYCS.show_img?p_field=CHILD&p_rowid='||mycs_lib.url_encode(cd.rid)||'" width=160 height=120>',
'<img src="MYCS.show_img?p_field=CHILDARCH&p_rowid='||mycs_lib.url_encode(cd.rid)||'" width=160 height=120>')
) "PHOTO"
from MYCS.mycs_child_details_v cd
where cd.id like :child_id
adn ...
The last field on the (select statement) is a photo(blob type)
NB:MYCS.mycs_child_details_v is a view
trying to create the report i get the following Error:
unable to describe SQL statement. Please correct it (WWV-13010)
Took exception (WWV-13005)
ORA-00942: inconsistent datatypes: expected - BLOB wwv-11230
This report runs without any errors on portal 3.0.9 9i AS
i dont understand what could be wrong here?
is BLOB datatype not supported by/on portal?
is the other way i can display this picture(s)?

Jean,
See this thread:
How can I upload/display image within a record ?
Sergio

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Hi,
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<%if(dsAttributes.getName().compareTo("Image")==0){
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Thanks in advance.

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      begin
        selecT OI_BLOB,DBMS_LOB.getlength (OI_BLOB)
        into lob_loc,l_length
        from ord_img
        where oi_tno= pv_image
          and oi_ti='PDF'
          and oi_idx=pv_index;
      exception
            when others then
            null;
        end;
     OWA_UTIL.mime_header (NVL (l_mime, 'application/pdf'), FALSE);
     HTP.p ('Content-length: ' || l_length);
     OWA_UTIL.http_header_close;
     WPG_DOCLOAD.download_file (lob_loc);
END lf_html_pdf; Start by getting rid of:
      exception
            when others then
            null;and never using it anywhere ever again.
If you're not actually going to use the <tt>l_mime</tt> and <tt>l_file_name</tt> variables then remove these as well. (Although I really think you should set a filename.)
>
Error report:
ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SYS.OWA_UTIL", line 356
ORA-06512: at "SYS.OWA_UTIL", line 415
ORA-06512: at "HCLABPRO.PKG_PDF", line 220
ORA-06512: at line 2
06502. 00000 - "PL/SQL: numeric or value error%s"
>
The error stack indicates that the exception is being raised in <tt>HCLABPRO.PKG_PDF</tt>: what is <tt>HCLABPRO.PKG_PDF</tt>? Does this actually have anything to do with the procedure above?
I get the error message as below when i execute the procedure above;How do you execute it?
What happens when it's executed without the <tt>when others...</tt> built-in bug?

Report to display a picture from a blob column

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