select a.file_name,a.tablespace_name,to_char(b.creation_time,'yyyy-mm-dd') creation_time from dba_data_files a,v$datafile b where a.file_id=b.file# order by tablespace_name;
select a.file_name,a.tablespace_name,to_char(b.creation_time,'yyyy-mm-dd') creation_time from dba_data_files a,v$datafile b where a.file_id=b.file# order by tablespace_name;