1 DFHDCT TYPE=SDSCI ,DSCNAME=name
2? ,BLKSIZE=length
3? 
3 ,BUFNO=
3.1! 1
3.1?
3.1 number
4? 
4 ,ERROPT=
4.1! IGNORE
4.1?
4.1 SKIP
5? 
5 ,RECFORM=
5.1 FIXUNB
5.1 FIXUNBA
5.1 FIXUNBM
5.1 FIXBLK
5.1 FIXBLKA
5.1 FIXBLKM
5.1 VARBLK
5.1 VARBLKA
5.1 VARBLKM
5.1 VARUNB
5.1 VARUNBA
5.1 VARUNBM
6? ,RECSIZE=length
7? 
7 ,REWIND=
7.1 LEAVE
7.1 REREAD
8? 
8 ,TYPEFLE=
8.1! INPUT
8.1?
8.1 OUTPUT
8.1 RDBACK