????1?????
????sqlplus / as sysdba;//???sys???
????sqlplus sys as sysdba;//???
????sqlplus scott/tiger;//?????????scott
????2??????????
????create tablespace user_data
????logging
????datafile 'D:oracleoradataOracle9iuser_data.dbf'
????size 50m
????autoextend on
????next 50m maxsize 20480m
????extent management local;
????3??????????????????
????create user username identified by password
????default tablespace user_data
????temporary tablespace user_temp;
????4????????
????grant connect??resource??dba to username;
??????????Oracle??????????????????????????????????Oracle????????.