grant read,write on directory data_dir to dbuser;
grant exp_full_database,imp_full_database to dbuser;
参考自： https://blog.csdn.net/mr_awei/article/details/81089259
ERP R12参考表结构
https://www.cnblogs.com/lfx0692/articles/2395574.html
https://www.cnblogs.com/quanweiru/archive/2012/10/25/2739115.html
https://blog.csdn.net/weixin_41367660/article/details/80671246