1、導入導出步驟：
1.創建目錄（用於存放導出數據）mkdir 目錄名
2.給目錄授權：chown -R oracle testorcl
chown -R anychat:anychat *
3.su - oracle到oracle 用戶下->sqlplus
4.create directory +虛擬目錄 as '實際存放數據目錄'
5，grant read,write on directory 虛擬目錄 to 用戶
6，exit(退出sql*plus)
7. oracle用戶下執行expdp user/pw directory=虛擬目錄 dumpfile=XXX.dmp logfile=xxxxx.log schemas=user
(expdp crh_new/wskh directory=WLZQTEST1 dumpfile=0422.dmp logfile=0422.log schemas=crh_new)
例如：
1.mkdir /opt/oracle/dpdmp
2.chown -R oracle dpdmp
3.su - oracle 然後 sqlplus
4.create directory DPDATA as '/opt/oracle/dpdmp'
5，grant read,write on directory DPDATA to wskh_uf
6，exit
7. expdp wskh_uf/wskh directory=DPDATA dumpfile=0422.dmp logfile=0422.log schemas=wskh_uf
impdp wskh_uf/wskh directory=DPDATA dumpfile=0422.dmp logfile=0422.log remap_schema=wskh_uf:wskh_uf1 remap_tablespace=crhdata:crhdata1;