create or replace directory dumpdir as ‘E:\oracle\dumpdir‘;
create temporary tablespace ydxt_temp
tempfile ‘E:\oracle\product\10.2.0\oradata\ydxt\ydxt_temp.dbf‘
size 50m
autoextend on
next 50m maxsize 20480m
extent management local;
create tablespace ydxt
logging
datafile ‘E:\oracle\product\10.2.0\oradata\ydxt\ydxt.dbf‘
size 50m
autoextend on
next 50m maxsize 20480m
extent management local;
create user ydxt identified by hfzt123456
default tablespace ydxt
temporary tablespace ydxt_temp;
grant connect,resource,dba to ydxt;
数据泵导入
impdp hfzt/hfzt123456@ydxt dumpfile =YDXT-20161011.DMPDP logfile=YDXT-20161011.log directory=dumpdir
数据泵导出
expdp pgys/hfzt123456@hfzt directory=dumpdir dumpfile=pgys20161213.dmp logfile=pgys20161213.log

删除用户
drop user ×× cascade
以dba方式登录
sqlplus /nolog
conn sys/pass@数据库 as sysdba
或者
sqlplus "/as sysdba"

oracle数据库建表