如果undo表空间undotbs不能释放空间重建之
创建备用undo表空间
create undo tablespace newundotbs datafile $ORA_DATA/newundotbsdbf size m
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切换undo表空间
alter system set undo_tablespace=newundotbs scope=spfile
/
shutdown immediate
/
startup
/
drop原表空间
drop tablespace undotbs including contents and datafiles
/
创建原undo表空间
create undo tablespace undotbs datafile $ORA_DATA/undotbsdbf size m
/
切换undo表空间
alter system set undo_tablespace=undotbs scope=spfile
/
关闭重起并把备用undo表空间drop
shutdown immediate
/
startup
/
drop tablespace newundotbs including contents and datafiles
/
