Re: Preventing variables from "rolling over"

>>>>> "d" == drevil  <drevil@sidereal.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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