Thanks again to everyone responded. This was very educational!
Looks like values unique within a week can be compressed into 8 bytes: 1) 6 bytes as a "day fraction" of TOD obtained via STCK [reminder of TOD/X'0141 DD76 0000']; since the highest nibble of the result is always zero, it can be used to keep "day-of-week"; 2) 2 bytes Programmable Field [obtained via STCKE once per region life]. And, in the unprobable case when a WRITE to VSAM KSDS with such a key returns "DUP", step (1) will be repeated and the WRITE will be retried. Truly appreciate your help, -Victor- ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
