I have this query (that runs on Oracle 10g database):

SELECT ge.*, ge.concept AS glossarypivot 
FROM s_glossary_entries ge 
WHERE (ge.glossaryid = '161' OR ge.sourceglossaryid = '161') 
AND (ge.approved != 0 OR ge.userid = 361)  
AND concept = '?'  ORDER BY ge.concept 

The query must display all words that begin with the arabic letter "?" but unfortunately, it returns empty result ..

However, if I run the same query on the same database which runs on MYSQL, it works well and displays the correct result ..

What should I do in order to get this query working the right way on oracle 10 database?

P.S. the oracle database character set is : "AL32UTF8"

thank you so much in advance