1。下载整个实例
exp dbuser/dbpwd file=db.dmp log=db.log full=y consistent=y direct=y
2。上载整个实例
imp dbuser/dbpwd file=db.dmp log=db.log full=y commit=y ignore=y
exp dbuser/dbpwd file=db.dmp log=db.log full=y consistent=y direct=y
2。上载整个实例
imp dbuser/dbpwd file=db.dmp log=db.log full=y commit=y ignore=y
exp userid=system/manager owner=username1 file=expfile.dmp
2.导入
imp userid=system/manager fromuser=username1 touser=username2 ignore=y file=expfile.dmp