How to fix the Oracle error ORA-12163: TNS:connect descriptor is too long?

In this post, you’ll learn more about the Oracle ErrorORA-12163: TNS:connect descriptor is too long with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12163: TNS:connect descriptor is too long

Reason for the Error ORA-12163: TNS:connect descriptor is too long

The connect descriptor corresponding to the net service name specified as the connect identifier is too long. The maximum length for a connect descriptor is 512 bytes and this limit has been exceeded.

How to fix the Error ORA-12163: TNS:connect descriptor is too long ?

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

Check the net service name’s connect descriptor in the local naming file (TNSNAMES.ORA) or in the directory server (Oracle Internet Directory). Use a smaller connect descriptor. If this is not possible, contact Worldwide Customer Support.