" select * from Customer where custname = '³¯§Ó©ú' "
always get error, but
Command1.CommandText =
" select * from Customer where custname = 'ABC' "
this sql it's ok.

Our Oracle Server is 8.1.7.Oleg wrote:You can settle this problem by setting OracleConnection.Unicode property.
This option works if you have installed Oracle Client version 9.2. or higher.