How do I fix error code 17002?

First check the tnsnames. ora file and ensure that it points to the correct server and port. If the Forms server is on another machine, test the TNS resolve with tnsping from the command prompt. Finally, check the listener.

Table of Contents

How do I import TNS file into SQL Developer?

ora file manually.

Start SQL Developer and go to Tools > Preferences;
In the Preferences option, expand the Database component, click on Advanced, and under the “Tnsnames Directory” browse to the folder where your tnsnames.
Restart SQL Developer;
Now in SQL Developer select Connections and click New Connection;

What is IO error in Oracle?

SQLException: IO Error: The Network Adapter could not establish the connection” – This error message is Oracle’s way of saying either ‘Connection refused’ or ‘Connection timeout’ or ‘no route to host’ or ‘unknown host’. This is a very generic error that could occur due to various reasons.

How do you fix status failure failed IO error the network adapter could not establish the connection?

Incorrect Details: Make sure that the connection details have been entered properly. The Hostname, Port, Username, and password need to be entered correctly in order to establish the connection. If any of these values aren’t entered properly, the error might be triggered.

How can I check my listener status?

Do the following:

Log on to the host where the Oracle database resides.
Change to the following directory: Solaris: Oracle_HOME/bin. Windows: Oracle_HOME\bin.
To start the listener service, type the following command: Solaris: lsnrctl START. Windows: LSNRCTL.
Repeat step 3 to verify that the TNS listener is running.

How do I start Oracle listener service in Linux?

Starting the Oracle product and the listener service

Windows operating systems: Use the Services menu to start the Oracle TNS listener named OracleOraDb12_home1TNSListener . If the Oracle listener service is idle, start the listener.
UNIX and Linux operating systems: Enter these commands: # su – oracle # ./lsnrctl start.

Where is TNS file located?

ORACLE_HOME/network/admin directory

By default, the tnsnames. ora file is located in the ORACLE_HOME/network/admin directory.

What is TNS file in Oracle?

The tnsnames.ora file is a configuration file that defines connection parameters for your Oracle database instance. By default, tnsnames.ora resides in the following location: Solaris. Oracle_HOME/network/admin.

What is TNS ORA file in Oracle?

How do you fix IO error the network adapter could not establish the connection on Oracle SQL?

IO ERROR: The network adapter could not establish the connection

How do I start and stop an Oracle database?

To start or shut down Oracle Database:

Go to your Oracle Database server.
Start SQL*Plus at the command prompt: C:\> sqlplus /NOLOG.
Connect to Oracle Database with username SYSDBA: SQL> CONNECT / AS SYSDBA.
To start a database, enter: SQL> STARTUP [PFILE=path\filename]
To stop a database, enter: SQL> SHUTDOWN [mode]

How do I restart my listener?

To start or stop the listener at the command line:

Open a command window.
Follow the steps listed in “Configuring the Operating System Environment Variables .”
Enter either of the following commands, depending on whether you want to start or stop the listener: lsnrctl start lsnrctl stop.

How do I know if TNS listener is running?

How do I connect to Oracle listener?

For Oracle Net to accept connections on the database server, start the listener with the Listener Control utility on the server:

Determine the status of the listener. From the command line, enter: lsnrctl LSNRCTL> STATUS [listener_name]
Start the listener.
Exit from the Listener Control utility.

How can I update Tnsnames Ora file?

Updating the tnsnames. ora files

From the Oracle Home, open the file tnsnames. ora. Typically, the default location of the file tnsnames. ora is <ORACLE_HOME>\NETWORK\ADMIN\.
Edit the entry in tnsnames.ora as follows: Replace HOST=machine_name. with HOST=virtual_IP_address.
Save and close the tnsnames. ora file.

What is a TNS file?

What is TNS service name?

TNS Service name is the local name of the remote Oracle service. To specify the TNS Service name you need to start “Oracle Net Configuration Assistant”.

What are the 4 shutdown modes?

There are several modes for shutting down a database: normal, immediate, transactional, and abort. Some shutdown modes wait for certain events to occur (such as transactions completing or users disconnecting) before actually bringing down the database.

How can I restart a Oracle Database?

Start up and Shut down the Oracle Database Instance

Open a terminal window as the oracle user.
Log in to SQL*Plus as the SYSDBA user.
Issue the SHUTDOWN command to close the database and shut down the instance.
Issue the STARTUP command to start the instance and open the database.

Where is the listener Ora file located?

By default, the listener. ora file is located in the ORACLE_HOME/network/admin directory. The listener.

How do I check my TNS Listener status?

How do I restart TNS listener?

How do I check my listener Ora?

By default, the listener. ora file is located in the ORACLE_HOME/network/admin directory. The listener.

What is listener name in Oracle?

It can be found in the “$ORACLE_HOME/network/admin” directory on the server. Here is an example of a basic “listener. ora” file from Linux. We can see the listener has the default name of “LISTENER” and is listening for TCP connections on port 1521.

How do I fix error code 17002?