Oracle: SYS.FILE$

select
   fil.file#,    -- Join with x$kccfn.fnfno and find filename in `x$kccfn`.
   fil.status$,
   fil.blocks,
   fil.ts#,
   fil.relfile#,
   fil.maxextend,
   fil.inc,
   fil.crscnwrp,
   fil.crscnbas,
   fil.ownerinstance,
   fil.spare1,
   fil.spare2,
   fil.spare3,
   fil.spare4
from
   sys.file$ fil;