Posted on 2003-03-15
Medium Priority
Last Modified: 2012-05-04
I succeeded to log onto sql_plus 3.1 using username: scott and password: tiger and left the hoststring blank. But later on when I tried again I failed. The message:
ERROR: ORA-03121: (Cnct err, can't get err txt.  See Servr Msgs & Codes Manual)
ERROR: ORA-09354: (Cnct err, can't get err txt.  See Servr Msgs & Codes Manual)

Help me!!!
Question by:poobalan18
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Expert Comment

ID: 8146050
When you tried the 2nd time did you do it with host string.
It appears you need to install/configure sql*net again.
Can you get connected without host string. I assume you
are doing this locally from the server. What is OS and Oracle version?
LVL 21

Expert Comment

ID: 8146811
Look for Your question at:
http://otn.oracle.com/pls/db92/db92.error_search?search='Your Error here'

ORA-03121 no interface driver connected - function not performed
This is the only what I found:
If you are using an Oracle V6 based application you will get an ORA-03121 when  trying to connect via SQL*Net V2 if you don't use the "tns:" net prefix in the  connect string.  An Oracle V6 based application means that the application is  linked to use ORA6WIN.DLL.  If the application is linked to use ORA7WIN.DLL,  the "tns:" prefix is not needed.      

Expert Comment

ID: 8148136
u can try shutting down oracle database,restarting it and then trying again. this error sometimes comes if the oracle task dies unexpectedly
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Expert Comment

ID: 8150454
Hi Poobalan18,

Reinstalling would help, I suppose some DLLs are missing or have gone corrupt.




LVL 35

Expert Comment

by:Mark Geerlings
ID: 8152671
Don't re-install anything yet.  Please give us some more information.

1. Did you only succeed in logging in to SQL*Plus just one time, and every other attempt failed?

2.  Where is the database, on your PC, on a network server, etc?

3. Which Oracle software do you have installed on the machine you are using SQL*Plus on?  Oracle client software only (which version)?  Also Oracle database software (which version)?

Expert Comment

ID: 8171005
You need to set your $ORACLE_HOME .... your environment does not know where it is ....

Accepted Solution

amp072397 earned 0 total points
ID: 10636860
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