oracle 备份
1.创建虚拟目录,映射到本地
create directory beifen as 'd:/beifen';
查看所有目录
SELECT * FROM dba_directories;
删除目录
drop directory beifen
2.全库备份
expdp system/123456@127.0.0.1/orcl directory=beifen dumpfile=ly.dmp full=y logfile=expdp.log;
一个错误
解决的办法就是将EXEMPT ACCESS POLICY这个权限赋给system用户:
sqlplus /nolog conn / as sysdba GRANT EXEMPT ACCESS POLICY TO system;
成功!