Database Software

please i need help to configure the language in O10g2 on my OracleEnterpriseLinux .. see this :
=================================================
SQL> select pw_comp_name from public_wings;

PW_COMP_NAME
--------------------------------------------------------------------------------
????? ???????

SQL>
=================================================

i tryed to configure the NLS_LANG by running the command
$ export LC_CTYPE=ar_JO.iso88596
but its still the same
also :
$ export NLS_LANG=AMERICAN_AMERICA.AR8MSWIN1256
$ export LC_ALL=UTF8
now its changed into spaces " " instead of question marks " ? "... please help

---- ----- ----- ---- ---- ---- ----
by looking on the output of
$ locale -a | less
i see all options i can add into LC_ALL,LC_CTYPE , ... etc , variables

so ,, i`ve added my specific language option
$ export LC_CTYPE=ar_JO.utf8
then some characters of the output looks correct ,, but other looks not in its place ,,, i`ve tried all the rest of "ar_ " options to the variable LC_CTYPE
but its still the same ,, please i need some directions

Edited by: user9146262 on Feb 14, 2010 9:45 AM