In two different servers, I have a public DB link named abc.REGRESS.RDBMS.DEV.US.ORACLE.COM - In one DB, I can connect to DB link using full name (abc.REGRESS.RDBMS.DEV.US.ORACLE.COM) or just (abc) without any error. On another DB, only full name is working (abc.REGRESS.RDBMS.DEV.US.ORACLE.COM) and partial name (abc) fails with error message (ORA-02019: connection description for remote database not found). How to fix it?
DB Version 19.13.0.0.0 (multi-tenant)