UTF8 woes - ORA-01756 quoted strring not properly terminated

(Character Set: UTF8, Oracle8i Enterprise Edition Release 8.1.7.4.0 - Production)

I'm having a weird umlaut/UTF8 problem.

Here's the statement that doesn't work:

SQL> insert into de_valid_blz values ('54861190' , 'Raiffeisenbank Oberhaardt-Gäu');
ERROR:
ORA-01756: quoted string not properly terminated

The second column is a VARCHAR2, so after some tries I ran this insert:

SQL> insert into de_valid_blz values ('54861190' , 'Raiffeisenbank SQL> Oberhaardt-Gäu ');
1 row created.

Strings like 'Raiffeisenbank Oberhaardt-Gäule' etc. work as well. So once I add more than one character after the umlaut things work fine.

• Dirk