Dear Expert: When we enable the whitelist (sqlnet.ora) for the Oracle RAC database, we restart the RAC cluster scan_listener, which will cause the application to fail to connect to the database and report an error of Ora-12514. If we turn off the w...

Dear Expert： After we upgraded the system, we found that after the transfer request of the interface class was transferred to the production system, the code had been successfully overwritten, but the interface program still used the code of the pr...