>>>>> "Craig" == Craig Ringer <ringerc@xxxxxxxxxxxxx> writes:
Craig> I just wish they hadn't written it backwards!
Craig> It'd be much less confusing were it formulated as something
Craig> like:
Craig> SELECT FROM thetable WHERE first_letter > 'a' RESULTS
Craig> left(value,1) AS first_letter
Craig> or something, where the order is more obvious. I really
Craig> dislike the way SQL is written not-quite-backwards.
It's not "written backwards", it's plain natural language semantics:
"give me the first letter of all records where the first letter is
greater than a". Refining a set is better done walking from the more
general set to a subset, not the other way around, IMO: "give me all
persons that are females and over the age of 20". Mathematical set
builder notation does this in a similar fashion, for the same reason.
--
Eden Cardim
http://insoli.de
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