dbaascli tde status
The tde status subcommand of the dbaascli utility is used to view information about the software keystore used in tablespace encryption.
Execute this command as the oracle user.
dbaascli tde status --dbname dbnameIn the above command, dbname specifies the name of the database that you want to check.
Output from the command includes the type of keystore and the status of the keystore.