select
inst_id, -- INST_ID NUMBER
to_date( -- BEGIN_TIME DATE
btime, 'MM/DD/RR HH24:MI:SS','NLS_CALENDAR=Gregorian'),
to_date( -- END_TIME DATE
etime, 'MM/DD/RR HH24:MI:SS','NLS_CALENDAR=Gregorian'),
fbw*512, -- FLASHBACK_DATA NUMBER
dbw*512, -- DB_DATA NUMBER
redow*512, -- REDO_DATA NUMBER
to_number(fbsz) -- ESTIMATED_FLASHBACK_SIZE NUMBER
from
x$krfgstat