1 误删dbf文件造成ORA-01109: 数据库未打开.时间:2023-03-09 13:33:44 1.cmd-sqlplus /nolog-conn system/pwd as sysdba 2.shutdown immediate; 3.startup mount; 4.alter database datafile 'd:\*.dbf' offline drop; alter database open; http://hi.baidu.com/tned/blog/item/07ab8525ff3e026734a80f08.html