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Hi,
Sometimes You can get “TNS-12500: TNS:listener failed to start a dedicated server process ” error.
Details of error are as follows.
TNS-12500: TNS:listener failed to start a dedicated server processCause: The process of starting up a dedicated server process failed. The executable could not be found or
the environment may be set up incorrectly.
Action: Turn on tracing at the ADMIN level and reexecute the operation. Verify that the ORACLE Server
executable is present and has execute permissions enabled. Ensure that the ORACLE environment is specified
correctly in LISTENER.ORA. The Oracle Protocol Adapter that is being called may not be installed on the
local hard drive. Please check that the correct Protocol Adapter are successfully linked.
If error persists, contact Oracle Customer Support.
If you got this error, it means Operating system is physically out of resources ( RAM and CPU )
Or Ensure that the ORACLE environment is specified correctly in LISTENER.ORA. The Oracle Protocol Adapter that is being called may not be installed on the local hard drive
Do you want to learn more details about RMAN, then read the following articles.
https://ittutorial.org/rman-backup-restore-and-recovery-tutorials-for-beginners-in-the-oracle-database/
