Arabic characters not displaying in Forms

Question

Problem :
I have a xml in the unix server machine and I try to read that xml file through a dba job which is using simple utl_file functionality.
To read the file and put in a table of column CLOB.
I'm checking it from front end Oracle 10g form 's text item , I'm getting junk characters like ???????
I tried to check whether the data stored in db is correct by running below program to generate message to the text file
BEGIN
for x in (
select message from tb_xml_in where xml_sr_no='123'
loop
   clob_to_file( '/test/debug/',
   'test' || '.txt',
   x.message );
end loop;
END;I transferred the test.txt from unix and checked in notepad of my machine where Arabic character is enabled
and it is showing me Arabic character.
Which means its storing correct in db but not able to show it correct in through FMB.
Database details:
NLS parameter is
NLS_LANGUAGE          AMERICAN
NLS_TERRITORY          AMERICA
NLS_NCHAR_CONV_EXCP     FALSE
NLS_CHARACTERSET     AR8MSWIN1256
NLS_NCHAR_CHARACTERSET     AL16UTF16
NLS_LENGTH_SEMANTICS     BYTE
NLS_RDBMS_VERSION     10.2.0.4.0
select * from V$NLS_VALID_VALUES where parameter = 'CHARACTERSET' and value like '%UTF%';
PARAMETER     VALUE          ISDEPRECATED
CHARACTERSET     AL24UTFFSS     TRUE
CHARACTERSET     UTF8          FALSE
CHARACTERSET     UTFE          FALSE
CHARACTERSET     AL32UTF8     FALSE
CHARACTERSET     AL16UTF16     FALSE
select * from V$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      ProductionChanging NLS Characterset of db is not currently recommended as the production database is very huge.
Can you please help on how i can resolve this issue.

Answer 1

even though the NLS_LANG is AMERICAN_AMERICA.US7ASCII in formconfig.
My utl_file.Get_line not reading arabic character in my xml file.
since my incoming xml is in UTF8 format, I used following code to read xml as raw data type and converting format from UTF8 to database format(i.e., Arabic) and I'm able to see Arabic from front end
DECLARE
v_Data1 varchar2(32767 BYTE);
v_Data2 varchar2(32767 BYTE);
v_Raw1 raw(32767);
v_Targetcharset varchar2(40 BYTE);
v_Dbcharset varchar2(40 BYTE);
v_inf UTL_FILE.FILE_TYPE;
l_UTL_DIR varchar2(1000) := '/test/arabic/in/xml/';
v_Filecharset varchar2(100);
v_nchar NVARCHAR2(4000);
BEGIN
v_Filecharset := 'AMERICAN_AMERICA.AL32UTF8' ;
v_Dbcharset:= 'ARABIC_UNITED ARAB EMIRATES.AR8MSWIN1256' ;
dbms_output.put_line('here1');
V_Inf := UTL_FILE.FOPEN(l_UTL_DIR,'testing.xml', 'R',32767);
dbms_output.put_line('here2');
UTL_FILE.GET_RAW(V_inf, v_Raw1, 2000);
dbms_output.put_line('here3');
v_Raw1 := UTL_RAW.CONVERT (v_Raw1,v_Dbcharset,v_Filecharset);
dbms_output.put_line('here5');
v_Data2 := utl_raw.cast_to_varchar2 (v_Raw1);
dbms_output.put_line('here6');
update sample_test set sample_col1 = v_Data2
where sample_col2 ='XXXXX';
UTL_FILE.FClose(v_inf);
commit;
EXCEPTION
WHEN OTHERS THEN
     dbms_output.put_line('SQLERRM ='||SQLERRM);
End;
/Edited by: Leonard on Aug 31, 2012 4:32 AM