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ORA-12545 Error "Connect Failed Target host or object does not exist", pls HELP [message #115852]

Thu, 14 April 2005 13:34

anin
Messages: 7
Registered: April 2005

Junior Member

Hi,

I'm a newbie and I'm trying to connect to my network oracle DB.I get ORA-12545 Error "Target host or object does not exist".

I configured the local net service name using net8 configuration assistant.

Everything is commented in the sqlnet.ora

Any help would be appreciated.

thanks.

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Re: ORA-12545 Error "Connect Failed Target host or object does not exist", pls HELP [message #115853 is a reply to message #115852]

Thu, 14 April 2005 13:36

Mahesh Rajendran
Messages: 10708
Registered: March 2002
Location: oracleDocoVille

Senior Member
Account Moderator

Can you ping the network machine?
can you tnsping the database from client?
ELSE
post the contents of tnsnames.ora
post the connect string you are using.

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Re: ORA-12545 Error "Connect Failed Target host or object does not exist", pls HELP [message #115855 is a reply to message #115853]

Thu, 14 April 2005 13:46

anin
Messages: 7
Registered: April 2005

Junior Member

My SQLNet.ORA file:

AUTOMATIC_IPC = OFF
TRACE_LEVEL_CLIENT = OFF
names.directory_path = (TNSNAMES)
names.default_domain = world
name.default_zone = world

Have attached the TNSNAMES.ora

CONNECTION STRING:

Dim oc As String = "Data Source=server name; USER ID=myuserid;Password=mypass;Connection Lifetime=30;"

Dim objConn As New OracleClient.OracleConnection(oc)
Dim cmd As New OracleCommand()

Thanks for your interest

Attachment: Tnsnames.ora
(Size: 8.85KB, Downloaded 2166 times)

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Re: ORA-12545 Error "Connect Failed Target host or object does not exist", pls HELP [message #115860 is a reply to message #115855]

Thu, 14 April 2005 14:08

anin
Messages: 7
Registered: April 2005

Junior Member

Why do I have 2 folders under c:\oracle as ora81 and another as ora92
which one should I use ?

Also other than that I have c:\orant8i

so clueless. help pleez

Tnsping doesn't work.

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Re: ORA-12545 Error "Connect Failed Target host or object does not exist", pls HELP [message #115861 is a reply to message #115860]

Thu, 14 April 2005 14:13

anin
Messages: 7
Registered: April 2005

Junior Member

The TNSping error is

TNS-03505: Failed to resolve name

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Re: ORA-12545 Error "Connect Failed Target host or object does not exist", pls HELP [message #115862 is a reply to message #115860]

Thu, 14 April 2005 14:14

Mahesh Rajendran
Messages: 10708
Registered: March 2002
Location: oracleDocoVille

Senior Member
Account Moderator

seems there are two versions of oracle client installed.
Each client has its own sqlnet.ora and tnsname.ora.
You use whichver you want.
Make sure the corresponding tnsnames.ora is updated. and comments of all entries in sqlnet.ora

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