How to fix the Oracle error TNS-00126: Missing Connection Manager name and address in TNSNET.ORA?

In this post, you’ll learn more about the Oracle ErrorTNS-00126: Missing Connection Manager name and address in TNSNET.ORA with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-00126: Missing Connection Manager name and address in TNSNET.ORA

Reason for the Error TNS-00126: Missing Connection Manager name and address in TNSNET.ORA

Cause: The Interchange name specified in INTCHG.ORA is not defined in the TNSNET.ORA file.

How to fix the Error TNS-00126: Missing Connection Manager name and address in TNSNET.ORA ?

You can fix this error in Oracle by following the below steps

Action: Define one Connection Manager name and set of addresses for each Interchange in the network. Regenerate the configuration files.