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LOSS OF A UNDO FILE IN ARCHIVELOG MODE

2013-12-01 18:51 344 查看
SQL>start up

ORA-01157:cannot identify/lock data file 2 - see DBWR trace file

ORA-011110:data file 2 "'undotbs01.dbf'

SQL> alter database datafile '/u01/app/oracle/oradata/ora11/undotbs01.dbf' offline drop;

SQL>alter database open;

SQL>create undo tablespace undotbs2 datafile '/u01/app/oracle/oradata/ora11/udotbs2.dbf' size 50m;

SQL>alter system set undo_tablespace=undotbs2;

SQL>drop tablespace undotbs1;(不能有活动数据)
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