Sending a database-stored attachment via email

Hi everyone,

I want to send a PDF file attached in the "Attachments" section of the IFS 10 application to a user via email. Here are the steps I followed, but I was unsuccessful.  Why am I getting this error? What alternative approach can I take? I would appreciate your help.

1. I retrieved the BLOB data of the relevant attachment using the query:
   SELECT k.file_data FROM edm_file_storage

2. I wrote a function that returns this value.

   CREATE OR REPLACE FUNCTION Get_Oq_File_Data(
       INQUIRY_NO_ IN VARCHAR2, 
       REVISION_NO_ IN VARCHAR2
   ) 
   RETURN BLOB IS
       v_file_data BLOB;  
   BEGIN
       SELECT t.file_data 
       INTO v_file_data
       FROM Doc_Reference_Object_tab d
       JOIN Edm_File_Tab e ON e.doc_class = d.doc_class 
                           AND e.doc_no = d.doc_no 
                           AND e.doc_sheet = d.doc_sheet
                           AND e.doc_rev = d.doc_rev
       JOIN EDM_FILE_STORAGE_TAB t ON e.doc_class = t.doc_class
                                    AND e.doc_no = t.doc_no
       WHERE e.doc_type = 'ORIGINAL'
         AND d.key_ref like %'INQUIRY_NO=' || INQUIRY_NO_ || 
                         '^REVISION_NO=' || REVISION_NO_%
         AND d.doc_class = 'FATURA'
         AND d.lu_name = 'QuotationOrder'
         AND ROWNUM =1 ;

    

       RETURN v_file_data;

    

   EXCEPTION
       WHEN NO_DATA_FOUND THEN
           RETURN NULL;
       WHEN OTHERS THEN
           RAISE;
   END Get_Oq_File_Data;

3. I used this function in the email trigger to send the email.

At this stage, I encountered an error in the form of    "Error while sending data...
Caused by: javax.mail.MessagingException: IOException while sending message
Caused by: java.io.FileNotFoundException: .pdf (The system cannot find the file specified)"