!urgent: subtracting records that falll in a range of times

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  • mikesta21
    New Member
    • May 2010
    • 1

    #1

    !urgent: subtracting records that falll in a range of times

    I have two tables:

    one having

    start time and end time, with each possible value throughout the day. end time is just 15 minutes after start time.

    the second table:

    gives ranges of time that are unvailable. these ranges of time can be any length.

    HOW how how how how can I subtract the ranges of unavailable time out from the list of possible times?

    I can get it to work when there is a single block of unavailability, but not when there are multiple.

    Please help! this is urgent.
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