--数据库备份--导出
exp userid=shoppingsys/shoppingsys@orcl file=/home/oracle/shoppingsys.dmp log=/home/oracle/shoppingsys.log
--数据库备份--导入
imp userid=shoppingsys/shoppingsys@orcl fromuser=shoppingsys touser=shoppingsys file=/home/oracle/shoppingsys.dmp log=/home/oracle/shoppingsys.log