[oracle] 解决ORA-30036：无法按8扩展段（在还原表空间‘XXXX’中）

select * from dba_data_files a
where a.TABLESPACE_NAME='UNDOTBS'

 alter tablespace UNDOTBS add datafile '/data/datafile/undotbs02.dbf' size 1000m autoextend on next 200m