>>>>> "d" == drevil <drevil(at)sidereal(dot)kz> writes:
d> way to check for this condition before I do the addition? Is there a
d> way to put a constraint on a variable, such that it's always positive?
I have bunches of these:
pid integer CHECK (pid >= 0),
They work great. Your update will return failure so you'll only find
out after the fact, but the table will not have been updated in any
case.
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Vivek Khera, Ph.D. Khera Communications, Inc.
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