Oracle client 8 is not supported on oracle 10.2.XX.. you should migrate ..
at least to Oracle8i....

best regards.
<leo@tech-trans.com> ha scritto nel messaggio
news:47a87493-7f2b-4d4b-815f-a97c4f727925@b9g2000prh.googlegroups.com...
> Hi,
>
> I have a Oracle server with 10.2.0.2.0 patchset. Because of known
> bugs, I have installed 10.2.0.4.0 patchset. It is over! I cannot
> connect to the server again by net8, sqlplus and so on. How can I
> do? However, I can use tnsping to find the listener.
>
> Ming