# XE DB 버전 show user select name from v$database; # public database link 생성 create public database link ora11g_link connect to system identified by oracle using 'ora11g'; /* create public database link ora11g_link connect to system(ora11g 서버) identified by oracle using 'ora11g'; */ # link 생성 확인 select * from dba_db_links; # public database link 삭제 drop public database link ORA11G_LINK; # 디렉터리 생성..