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  1. #1
    Join Date
    Aug 2015
    Posts
    3

    Unanswered: How to prevent duplicate data entry

    hello . I Have 4 Fields in subform called (name1 , name2 , name3 , Nfather)

    with Considering three first Field How can I prevent duplicate data entry when if NFather ID 2 = Seth ?


    ID-----name1-----name2-----name3-----Nfather
    1 Ruby Ruby Ruby Seth
    2 Ruby Ruby Ruby Jon

  2. #2
    Join Date
    Aug 2017
    Posts
    13
    Provided Answers: 1
    You should look in to Unique Composite Indexes

  3. #3
    Join Date
    Aug 2015
    Posts
    3

    How to prevent duplicate data entry

    unfortunately I am not professional

    I'd appreciate If you can complete the sample please

    no duplicate.zip

    I main prevent duplicate based on 4 fields
    Last edited by zozzz; 08-11-17 at 13:13.

  4. #4
    Join Date
    Aug 2015
    Posts
    3

    How to prevent duplicate data entry

    any Idea ???

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