CREATE TABLESPACE tablespace_name
DATAFILE 'D:\ProgramFiles\oracle\product\10.2.0\db_1\oradata\databasefile_name.DBF'
SIZE 200M REUSE AUTOEXTEND ON NEXT 50M MAXSIZE UNLIMITED DEFAULT STORAGE(INITIAL 512K NEXT 1M MINEXTENTS 1 MAXEXTENTS 999) ONLINE;
create user user_name identified by user_name default tablespace tablespace_name;
grant dba,connect,resource to user_name;