Fnd attachments in oracle apps (Graphical Representation)

Below diagram will give you the details of the tables involved in attachment functionality of Oracle Applications and its diagrammatic representation with an example.

Query:

SELECT t.short_text

  FROM fnd_documents_short_text t,

       fnd_documents d,

       fnd_document_categories_tl dct,

       fnd_attached_documents ad,

       fnd_doc_category_usages dcu,

       fnd_attachment_functions af,

       fnd_document_entities_tl det

 WHERE 1 = 1

   AND d.media_id = t.media_id

   AND ad.document_id = d.document_id

   AND dct.category_id = d.category_id

   AND dcu.category_id = d.category_id

   AND dcu.attachment_function_id = af.attachment_function_id

   AND ad.entity_name = det.data_object_code

   AND det.LANGUAGE = USERENV ('LANG')

   AND dct.LANGUAGE = USERENV ('LANG')

   AND det.user_entity_name = 'RA_CUSTOMER_TRX'

   AND dcu.enabled_flag = 'Y'

   AND dct.user_name = 'AR Header Note - Bottom'

   AND af.function_name = 'ARXTWMAI'

   AND ad.pk1_value = :customer_trx_id;

For more details:

http://www.shareoracleapps.com/2010/06/fnd-attachments-in-oracle-apps-r12.html