转自：https://zhidao.baidu.com/question/921271686131558779.html
使用
select * from dba_directories;
可以查到，例如：
OWNER DIRECTORY_NAME DIRECTORY_PATH
1 SYS EXPDIR D:appAdministratoradminorcldpdump
2 SYS UDIR D:appAdministratoradminorcldpdump
3 SYS XMLDIR c:adeaime_dadvfm0254oracle
dbmsxml
4 SYS DPDATA D:appAdministratoradminorcldpdump
5 SYS DATA_PUMP_DIR C:appAdministratoradminorcldpdump
6 SYS ORACLE_OCM_CONFIG_DIR C:appAdministratorproduct11.2.0dbhome_1ccrstate