On May 7, 8:50 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

Post the error messages, trace file and sql*net log file contents
unless you want us to play a guessing game.