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  1. #1
    2 Star Lounger
    Join Date
    Sep 2006
    Thanked 0 Times in 0 Posts

    Validation ? (Access 2000)

    i want to forbid the figues in my tables to be less than 0. For example if there is a substraction 1 - 2 the result should not be -1 but instead a message that something is wrong. How can i achieve that? Shal i use the validation Rule in the table ?

  2. #2
    Plutonium Lounger
    Join Date
    Mar 2002
    Thanked 31 Times in 31 Posts

    Re: Validation ? (Access 2000)

    Open the table in design view.
    Click in a field.
    Click in the Validation Rule box.
    Enter >=0 Or Is Null
    Click in the Validation Message box.
    Type a warning, for example Negative values not allowed
    Repeat for the other fields that should not be negative.

    Note: tables do not contain calculated fields. Queries can have calculated fields, and forms can have calculated controls.

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