1. 导出用户 expdp user1/pass1 directory=dumpdir dumpfile=user1.dmp
2. 导入用户 impdp user2/pass2 directory=dumpdir dumpfile=user1.dmp REMAP_SCHEMA=user1:user2 EXCLUDE=USER full=y;
2. 导入用户 impdp user2/pass2 directory=dumpdir dumpfile=user1.dmp REMAP_SCHEMA=user1:user2 EXCLUDE=USER full=y;