col thread# for 9999990
col sequence# for 999999990
col grp for 990
col fnm for a50 head "File Name"
col "Fisrt SCN Number" for 999999999999990
break on thread

select
	a.thread#
	,a.sequence#
	,a.group# grp     
	, a.bytes/1024/1024 Size_MB     
	,a.status     
	,a.archived     
	,a.first_change# "First SCN Number"     
	,to_char(FIRST_TIME,'YYYY-MM-DD HH24:MI:SS') "First SCN Time"   
	,to_char(LAST_TIME,'YYYY-MM-DD HH24:MI:SS') "Last SCN Time"
from
	gv$standby_log a  order by 1,2,3,4
 /