How to show BLOB type Column ? In XE

How to show BLOB type Column as image in APEX report area? (In XE)
I did it with the following procedure
create or replace PROCEDURE MY_IMAGE_DISPLAY (p_image_id IN NUMBER)
AS
l_mime VARCHAR2 (255);
l_length NUMBER;
l_file_name VARCHAR2 (2000);
lob_loc BLOB;
BEGIN
SELECT 'JPEG', MLOGO, 'IMAGE', DBMS_LOB.getlength (MLOGO)
INTO l_mime, lob_loc, l_file_name, l_length
FROM CARS_TABLE
WHERE M_ID = p_image_id;
OWA_UTIL.mime_header (NVL (l_mime, 'application/octet'), FALSE);
HTP.p ('Content-length: ' || l_length);
OWA_UTIL.http_header_close;
WPG_DOCLOAD.download_file (lob_loc);
END my_image_display;
GRANT EXECUTE ON my_image_display TO PUBLIC;
and executed the following command
CREATE PUBLIC SYNONYM my_image_display FOR shema_name.my_image_display;
but under XE , I can not see synonym? why?

sakrami,
Your question really belongs in the XE forum:
Oracle Database Express Edition (XE)
I think this posting addresses your question:
Re: Handling of pictures changed? Item values not properly updated in Beta
Joel

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