教你如何重建Oracle数据库的回滚段 

svrmgrl >Shutdown abort

$ vi  $ORACLE_HOME/dbs/init< sid >.ora

rollback_segments=(system) 

_corrupted_rollback_segments=(r01,r02,r03,r04) 

_allow_resetlogs_corruption=ture

svrmgrl >Startup mount

svrmgrl >alter database datafile 

‘##/##/rbs01.dbf’ offline drop;

svrmgrl >recover database using backup controlfile;

ORA_00280 Change #### for thread# is in sequence# 

specify log:[< RET > for suggested|AUTO|from logsource|cancel]

svrmgrl >alter database open resetlogs;

---- 将旧回滚段及回滚表空间删除。  

svrmgrl >alter rollback_segment r01 offline drop; 

svrmgrl >alter rollback_segment r02 offline drop; 

svrmgrl >alter rollback_segment r03 offline drop; 

svrmgrl >alter rollback_segment r04 offline drop; 

svrmgrl >drop tablespace rbs including contents; 

---- 重建新的回滚表空间及回滚段。  

svrmgrl >connect internal 

svrmgrl >create rollback segment ro tablespace system; 

svrmgrl >alter rollback segment ro online; 

svrmgrl >create tablespace rbs datafile  

##/##/rbs01.dbf’ size ##k; 

svrmgrl >create rollback segment r01 tablespace rbs; 

svrmgrl >create rollback segment r02 tablespace rbs; 

svrmgrl >create rollback segment r03 tablespace rbs; 

svrmgrl >create rollback segment r04 tablespace rbs; 

svrmgrl >alter rollback segment r01 online; 

svrmgrl >alter rollback segment r02 online; 

svrmgrl >alter rollback segment r03 online; 

svrmgrl >alter rollback segment r04 online; 

 

  

svrmgrl >Shutdown abort 

 $  vi  $ORACLE_HOME/dbs/init< sid >.ora 

  rollback_segments=(r01,r02,r03,r04) 

  将参数_corrupted_rollback_segment 

        _allow_resetlogs_corruption=true去掉 

svrmgrl >Startup normal