Hi Prashanth,
First of all as ur saying that your database does not support EURO symbol, then how can u insert a EURO symbol and retrive the same.
your database character set must be a super set or the same charater set of your client.
First make sure that your database supports EURO symbol by changing the character set of the DB and do the same on the client.

Check the below url

http://download-east.oracle.com/docs...17EE/index.htm

regards
anandkl