query strangness

I am having difficulty in oracle 8i for Win NT just doing a simple query on a varchar2 field. It works fine to query on any integer field, however if I try for example;

select * from USER.CUSTOMER where LASTNAME = 'test1' i get no rowset. Why is this. It seems to work on some varchar fields and not others.

Any help greatly appreciated! Received on Mon Oct 25 1999 - 21:17:59 CDT