With it being TNS, can I presume you are trying to connect from your desktop to a central server that runs the databases? If so, your desktop needs to know where the target is. I assume that you are doing something like sqlplus username/password@database and your desktop needs to interpret the database part and know where to send the IP connection.
This reads a file that should have been installed or created on your desktop (or network drive) to point you to a host (and various other things) that it will then use to look up the IP address and try to open the connection to that on the port given. On the server, there needs to be a TNS listener on the port that responds to your desktop and connects you to the correct database instance. All this happens before the database tries to authenticate your credentials.
Can you show us (in CODE tags) the output from a tnsping database putting in the name you are trying to connect to.
Can you tell us what Operating System you are trying to connect from and if you are using GUI tools or the command line.
I tried to tnsping the database and it return the following :
Code:
ksh: tnsping: not found.
However, if I ping the database and it returns the following :
Code:
ping DATABASENAME
PING DATABASENAME: (10.xxx.xx.xxx): 56 data bytes
64 bytes from 10.xxx.xx.xxx: icmp_seq=0 ttl=254 time=0 ms
64 bytes from 10.xxx.xx.xxx: icmp_seq=1 ttl=254 time=0 ms
64 bytes from 10.xxx.xx.xxx: icmp_seq=2 ttl=254 time=0 ms
64 bytes from 10.xxx.xx.xxx: icmp_seq=3 ttl=254 time=0 ms
---------- Post updated at 10:27 AM ---------- Previous update was at 10:20 AM ----------
Anyone knows if running sqlplus or sqlldr inside a ksh script,
should I enter the full path of where sqlplus and sqlldr are located like the below inside the script :
The commands ping and tnsping do different tasks. The ping will target an IP address, be that a server, desktop, switch, security camera, fridge or whatever networked device. tnsping on the other hand will take the name and try to make a connection to the running Oracle SID. It will first have to determine which host the database is on and get the IP address, so in at least needs to be able to ping the server. It will then use the name you give it and try to open a conversation with the listener (typically on port 1521 or the server) and check if the SID is valid.
The contents of tnsnames.ora provides the translation between the name you use and the server & name that the listener will respond to. The name you use could be changed to another by tnsnames.ora and/or another by the listener on the target server to get to the actual Oracle instance. If you are unable to validate the connection with tnsping, you will not be able to connect, however in your case you can't even get tnsping to start.
These errors suggest that you have not set up the environment correctly on your desktop or client, and that would explain why it cannot connect too, because it will not know where to find the tnsnames.ora file.
You should (at the least) have entries in your $PATH that included where executables are. Do you have a colleague that this works for that we can compare?
It would be good to see the output for both you & your colleague for:-
to see the tool start, but I would not expect it to find tnsnames.ora so it will probably not connect. You might like to post the output in the thread too.
Please post all output/errors in CODE tags to make it easier to read and to preserve the spacing/indenting.
There is usually information on the Oracle error with the oerr command. Try oerr ORA-12541 Failing that, have a look here
Basically the server is not listening for you or there is a network issue preventing you connecting, e.g. firewall, routing, IP tables (local firewall on the server itself) Firstly, check you have the right server. You would be far better using a tnsnames.ora file rather than coding IP addresses in your connection string.
Your updates are quite a leap. Do you have any output from the requests above? That way we will know where we're starting from and be better placed to help.
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IFS=","
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if
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fi
=====================================================
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Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
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sqlplus -s $CONNECT_STRING >$LOGFILE <<!!
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