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How about:
(DATE_YY > SelectedYear or
(DATE_YY = SelectedYear and
(DATE_MM > SelectedMonth or
DATE_MM = SelectedMonth and
DATE_DD >= SelectedDay))) and
(DATE_YY < Selected Year or
(DATE_YY = SelectedYear and
(DATE_MM < SelectedMonth or
DATE_MM = Selected Month and
DATE_DD <= SelectedDay)))
Out of curiosity, why do you want to use SQL if the RPG code can easily
select the records?
Donald R. Fisher, III
Project Manager
Roomstore Furniture Company
(804) 784-7600 extension 2124
DFisher@xxxxxxxxxxxxx
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What I can't seem to figure out is how to use SQL to select a date range
that doesn't result in a table scan.
These result in a table scan:
SELECT DATE_YY * 10000 + DATE_MM * 100 + DATE_DD FROM TABLE WHERE
(DATE_YY * 10000 + DATE_MM * 100 + DATE_DD) >= 20051001 AND
(DATE_YY * 10000 + DATE_MM * 100 + DATE_DD) <= 20051028
SELECT DIGITS(DATE_YY) || DIGITS(DATE_MM) || DIGITS(DATE_DD) FROM TABLE
WHERE (DIGITS(DATE_YY) || DIGITS(DATE_MM) || DIGITS(DATE_DD) >=
'20051001' AND
(DIGITS(DATE_YY) || DIGITS(DATE_MM) || DIGITS(DATE_DD) <= '20051028'
This one doesn't, but it's problematic:
SELECT DIGITS(DATE_YY) || DIGITS(DATE_MM) || DIGITS(DATE_DD) FROM TABLE
WHERE
(DATE_YY = 2005 AND DATE_MM = 10 AND DATE_DD = 1) OR
(DATE_YY = 2005 AND DATE_MM = 10 AND DATE_DD = 2) OR
(DATE_YY = 2005 AND DATE_MM = 10 AND DATE_DD = 3) OR
(DATE_YY = 2005 AND DATE_MM = 10 AND DATE_DD = 4) OR
...
(DATE_YY = 2005 AND DATE_MM = 10 AND DATE_DD = 25) OR
(DATE_YY = 2005 AND DATE_MM = 10 AND DATE_DD = 26) OR
(DATE_YY = 2005 AND DATE_MM = 10 AND DATE_DD = 27) OR
(DATE_YY = 2005 AND DATE_MM = 10 AND DATE_DD = 28)
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