oracle数据库导入导出

1、导入导出步骤：

1.创建目录（用于存放导出数据）mkdir 目录名

2.给目录授权：chown -R oracle testorcl

chown -R anychat:anychat *

3.su - oracle到oracle 用户下->sqlplus

4.create directory +虚拟目录 as '实际存放数据目录'

5，grant read,write on directory 虚拟目录 to 用户

6，exit(退出sql*plus)

7. oracle用户下执行expdp user/pw directory=虚拟目录 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    然后 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;