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Don't feel bad, *CYMD confuses a lot of people. As Simon suggested, RTM.
Basically the C does not stand for
1900 or 2000, or even 2100. What it stands for is:
0 = 1900
1 = 2000
2 = 2100
So 1975-09-01 in *CYMD would be represented as: 0750901. While
2025-09-01 would be 1250901.
I have to remind coworkers every so often. Especially when they think I
have a bug in MY code (like that would ever happen) when it boiled down to
the fact that they passed the wrong parameter and got back just what they
asked for (but not what they wanted).
*CYMD is for all those people who still insisted on storing their dates as
numeric and decided that 7 packed digits would take up less space than 8
packed digits (1250901 versus 20250901). Of course, 7 packed digits still
take up 4 bytes, which is the same size as a true date field takes.
Rob Berendt
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