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Thread: Multi User Problems

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  1. Feb 5th, 2007, 02:50 AM #1
    Xium
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    Multi User Problems

    i have a table name BILLS. main field is BillNo which contain bill number. when user want to creat new bil, program select MAX(BillNo) from BILLS table, New BillNo will be MAX(BillN0) +1 , then program add new record in this table with new BillNo.. now problem is this , we have 20 user who access same table at the same time for new bill. now there's heavy chance to get same MAX(BillNo). but we dont wanna BillNo duplication. so how we resolve this issue ?
    Last edited by Hack; Feb 5th, 2007 at 07:24 AM. Reason: Edited Thread Title
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