ORA-02019: Connection description for remote database not found

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Oracle Database
Oracle error messages
I had 7 databases in production environment. I wanted to create a testing environment but I only wanted 2 databases in that so I took the cold back up of two databases and did the cloning. Now my application is able to connect to the database but I am getting an error on some of the operations "ORA-02019: Connection description for remote database not found". Since I did not clone the rest of the sites I deleted the links to those sites. Can you suggest what can be the reason for this error?

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Thanks. We'll let you know when a new response is added.

Your application is most likely trying to access objects that reside in one of the databases you didn’t clone (through a inexistent dblink).

You will probably need to review your app’s code, looking for objects suffixed with “@<dblink_name>”.

It is also possible that those objects have synonyms, so you might need to query the all_synonyms table looking for rows containing the name of one of the dblinks you deleted in the field “db_link”.

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