On May 7, 2:50*am, l...@tech-trans.com wrote:
> 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

Did you follow the install doc for the patchset ( in readme file among
other places ) when you installed it? Otherwise how exactly did you
proceed?

Did you backup your software and the database(s) before applying the
patchset?