What is ora12514?
Andrew Mclaughlin
Updated on February 25, 2026
ORA-12514 means that the listener cannot find any matched service with yours, so it cannot establish a connection with the database for you. As a result, it responds ORA-12514 to alert the failed connection. Also, this could be due to using the wrong service name.
How do I fix ORA 12505 error?
There are several methods of correcting error ORA-12505. Your first action to resolve this issue should be to wait a few seconds, then try to re-connect to the database again. If this attempt is unsuccessful, try checking to see which instances are known by the listener.
How do I check my Ora?
ora file is located in the ORACLE_HOME/network/admin directory. Oracle Net will check the other directories for the configuration file. For example, the order checking the tnsnames.
What does the error ora-12514 mean?
The error ORA-12514 means that a listener received a request to establish a connection to a database or other service. The connect descriptor received by the listener specified a service name for a service (usually a database service) that either has not yet dynamically registered with the listener or has not been statically configured…
How to know the target listener is reachable in ora-12514?
Only one thing that can be sure in ORA-12514 is that the target listener is up and running. That is to say, the listener is reachable. For unknown requested SID, the listener throws ORA-12505: TNS:listener does not currently know of SID given in connect.
How to solve ora-12514 in Salesforce?
To solve ORA-12514 thoroughly, you should add a static service registration to the listener for your database. Otherwise, you have to connect to the database by OS authentication. Let’s see how to avoid ORA-12514 if you are going to do critical jobs like shutdown or startup database through OS authentication. 2.
What does TNS error ora-12505 mean?
For unknown requested SID, the listener throws ORA-12505: TNS:listener does not currently know of SID given in connect. It may have different error patterns from this post. Let’s see how we get ORA-12514.
