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oracle connection [message #449837] Thu, 01 April 2010 05:31 Go to next message
Messages: 2
Registered: April 2010
Junior Member
Hello everyone;
I apologize if this problem has been discussed already but I am really a beginner and my problem has persisted for a long time:
My database is oracle 10g I created (the database was really created by default during installation) a base whose SID is "orcl". She is on a remote database server data (Windows). I checked the file tnsnames. ora file listener.ora file sql.ora but the connection does not work with oracle sql I develop on my machine oracle client is installed. is there any recommendations to check a file changes ...
Thank you it is very urgent
Re: oracle connection [message #449842 is a reply to message #449837] Thu, 01 April 2010 06:38 Go to previous messageGo to next message
Michel Cadot
Messages: 58580
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator
Check if your server is on.

Seriously, do you think we can know what is wrong without having any information?
What is your error?
What do you see?


Re: oracle connection [message #449855 is a reply to message #449837] Thu, 01 April 2010 08:46 Go to previous messageGo to next message
Messages: 2
Registered: April 2010
Junior Member
ok my friend You Have Reason. I described the condition: I work with a pc in which Oracle client(10g) is installed, operating system windows xp sp2 . the oracle server is installed on a server remote database with the operating system is Windows Server 2008. this server belongs to a domain. I try to connect to the Oracle database located on the server. For this I made 2 methods:
1 - I try to connect to oracle using oracle sql developer but even by providing the connection parameters login password username, SID,IP there is an error message: "Exception I / O: the network adapter could not establish the connection "
2-I tried to get connected through a vb.net application that I used to connect to a local oracle database here is the error message: "ORA-12170:
TNS: Connect timeout occurred "

Here is my problem. is that there's other information I have provided?
Note well: I tried to connect from a PC in the same domain and another not belonging but the same problem.
Thank you.
Re: oracle connection [message #450035 is a reply to message #449855] Sat, 03 April 2010 22:52 Go to previous message
Messages: 22508
Registered: January 2009
Senior Member
From WINDOWS database server system CUT commands below & PASTE into terminal window:

type %ORACLE_HOME%\network\admin\listener.ora
type %ORACLE_HOME%\network\admin\tnsnames.ora
lsnrctl status
lsnrctl service
/ as sysdba
select * from v$version;

CUT results from commands above & PASTE all back here

CUT & PASTE from command line on database server showing that you can successfully connect to instance on DB Server via SQL*Net
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