How to fix tns 03505 Failed to resolve name?

How to fix tns 03505 Failed to resolve name?

TNS-03505: Failed to resolve name tips

1. Verify that you have spelled the database name correctly, and that the database has an appropriate entry in the tnsnames.
2. Verify that there are not multiple tsnnames.
3. If connecting to a client machine, make sure there are no firewall issues blocking the connection.

How do you resolve ORA 12154?

Resolution

1. Option #1. Make sure that the TNSNAMES. ORA file exists and is in the correct directory.
2. Option #2. Make sure that the service name that you are connecting to is included in the TNSNAMES. ORA file and that it is correctly defined.
3. Option #3. Make sure that there are no syntax errors in the TNSNAMES. ORA file.

How do I change the parameter file for Tnsping?

2 Answers

1. set the ORACLE_HOME environment variable. By default we will look in ORACLE_HOME/network/admin, or.
2. set the TNS_ADMIN environment variable. We will look there if it is set.
3. Don’t bother with tns entries. You can use //hostname:port/service_name as the string when you connect.

What is Tns_admin environment variable?

The TNS_ADMIN environment variable is used to specify the directory location for the tnsnames.ora file.

How do you fix TNS could not resolve the connect identifier specified?

They may be able to guide you in fixing the problem in accordance with your site’s standards. The client code decides which mechanism to use based on the file sqlnet. ora. This file and tnsnames can usually both be found in the Oracle install directory (“ORACLE_HOME”), under network/admin/.

Why did tns-03505 fail to resolve the name problem?

TNS-03505: Failed to resolve name Cause: The service name you provided could not be found in TNSNAMES.ORA, an Oracle Names server, or a native naming service. Action: Verify that you entered the service name correctly. You may need to ensure that the name was entered correctly into the network configuration.

Why does tnsnamesora fail to resolve the given name?

So that tools like sqlplus, tnsping or Oracle JDBC driver fails to match a correct entry in tnsnames.ora so as to fail to resolve the given name. For example, we can reproduce TNS-03505 by tnsping a deliberately misspelled the connect identifier like this:

Why is my service name not available in tnsnames?

Cause: The service name you provided could not be found in TNSNAMES.ORA, an Oracle Names server, or a native naming service. Action: Verify that you entered the service name correctly.

Why is my tnsnames not working in Oracle Net profile?

If you are using local naming (tnsnames.ora file) – make sure that “TNSNAMES” is listed as one of the values of the NAMES.DIRECTORY_PATH parameter in the Oracle Net profile (sqlnet.ora file). SQLNET.ORA sample provided below. Make sure the host, port and service name specified are correct and typo free.