Am 2013-11-09 16:54, schrieb Michael Van Canneyt:
On Sat, 9 Nov 2013, Jürgen Hestermann wrote:
That would be a real performance hit (i.e. when sorting by date)
if you have stored dates in year, month, day... format.
Each comparison then needs multiple convertions each time.
Not if you store everything as a DateTime and use that. The format is such that
it sorts naturally.
Storing dates as floats has a lot of drawbacks.
It's inaccurate, you always need a starting date and get other problems.
I shudder when thinking about Excels 1900 and 1904 based dates
where suddenly all my dates in the sheet where changed by 4 years
because the base has changed. ;-(
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