1. SYSIN
a. Fields
b. Format
c. Order
2. Format
SORT FIELDS=(loc,len,format,seq...)
SORT FIELDS=(loc,len,seq...) FORMAT=format
CH - Character
ZD - Zoned Decimal -1234 F1F2F3D4
PD - Packed Decimal -1234 01234D
BI - Binary 1234 4D2
A - Ascending
D - Descending
eg.
SORT FIELDS=(10,5,PD,D,20,5,PD,A)
SORT FIELDS=(10,5,D,20,5,A),FORMAT=PD