????3.ORACLE_BASE/oradata
??????oradata???￡???????????????????????????????????????DB_NAME??(??orcl)????????????????(.CTL)????????????(.LOG)?????????(.DBF)??洢??????С?
????????????ORACLE_HOME/database??(??????????????)??ORACLE_HOME/NETWORK/ADMIN??(?????????????)??ORACLE_BASE/oradata??(????????????)??????????????????????????????????????????????????????????滻????????????????????????????????
????4.ORACLE_BASE/flash_recovery_area
????flash_recovery_area???洢??????????????й?????????????????????????????????????鵵???????????????Oracle?????????????(RMAN)??????
???????????????????Oracle?????????