Oracle Reports : Run time error when there is a call to DBMS_LOB package

Question

I am facing a strange issue, please do share if you have some inputs. When I try running the compiled RDF report(Generating XML to be specific), Oracle Reports Builder crashes when I make use of the following formula function. Strangely, this works fine in the backend. Moreover I tried debugging and by trial and error method found out that, when there is a call to the DMBS_LOB package it errors (works fine when this is commented). Please do let me know whats the root cause of this issue. Thanks in advance
function CF_ClientSignatureFormula return VARCHAR2 is
file_name BFILE;
dir_name VARCHAR2(100);
dest_file_name VARCHAR2(100);
dest_path VARCHAR2(400);
begin
     SELECT client_signature
          INTO file_name
          FROM xxfpr.fpr_rcp_bank_details frb,
          Xxfpr. fpr_rcp_gtn_rpt_map frm
          WHERE frb.record_id = frm.bank_record_id
          AND frm.gtn_request_id = :p_gtn_request_id;
SYS.DBMS_LOB.filegetname(file_name,dir_name,dest_file_name);
SELECT directory_path INTO dest_path FROM all_directories where directory_name = dir_name;
dest_path := dest_path || '/' || dest_file_name;
return dest_path;
EXCEPTION
     WHEN OTHERS THEN
          RETURN NULL;
end;
Thanks,
NirmalGeo

Answer 1

And what version of Reports are you using?
BFILES are accessible from the database, not the client (Reports). So, put your code in the database.