imp 导入报错

imp user/passwd file=/data/oracle/oraclesetup/passwd.dmp
报错：
Export file created by EXPORT:V11.02.00 via conventional path
IMP-00013: only a DBA can import a file exported by another DBA
IMP-00000: Import terminated unsuccessfully
解决办法：
给导入用户赋予dba权限
grant dba to neWbiupay;
报错：
Export file created by EXPORT:V11.02.00 via conventional path

Warning: the objects were exported by CASHIER, not by you

import done in US7ASCII character set and AL16UTF16 NCHAR character set
import server uses ZHS16GBK character set (possible charset conversion)
export client uses ZHS16GBK character set (possible charset conversion)
IMP-00031: Must specify FULL=Y or provide FROMUSER/TOUSER or TABLES arguments
IMP-00000: Import terminated unsuccessfully
解决办法：
添加fromuser=cashier touser=newbiupay