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  1. #1
    rookie77 is offline Novice
    Windows 7 32bit Access 2010 32bit
    Join Date
    Nov 2012
    Posts
    4

    Please assist - Report showing #Num due to zero values

    I have a report that is returning percentages based upon other calculated fields. Some of the percentage fields are showing #Num on the report. I've found this is due to one of the calculated values being zero.

    3 Fields used:

    Field: Qty
    Total: Sum

    Field: InitQty
    Total: Sum

    Field: OrderQty: Sum([Qty]-[InitQty])
    Total: Expression


    I need two more fields to return percentages based off of those 3 fields. This is what I started out with:



    Field: InStock: [SumOfInitQty]/[SumOfQty]
    Total: Expression


    Field: Ordered: [OrderQty]/[SumOfQty]
    Total: Expression


    This works great until the query returns one that has sum of qty equal to zero.

    So this is what I've tried:

    Field: InStock: IIf(Nz([SumOfInitQty],0),0,[SumOfInitQty]/[SumOfQty])
    Total: Expression

    Seems like it should work but its still showing #Num when I run the query.
    Can someone help me figure this out?

  2. #2
    rookie77 is offline Novice
    Windows 7 32bit Access 2010 32bit
    Join Date
    Nov 2012
    Posts
    4
    Nevermind, As soon as I went back to it I guess my brain woke up and decided to function for me lol. I guess I was making it more complicated than necessary. But if you're here would you mind explaining the Nz function a little better for me? Maybe I misunderstood the purpose of that function.

  3. #3
    June7's Avatar
    June7 is online now VIP
    Windows 7 64bit Access 2010 32bit
    Join Date
    May 2011
    Location
    The Great Land
    Posts
    49,776
    All Nz does is provide an alternate value if the field contains Null. Arithmetic with null returns null. If you want 0 as result, your expression could be:

    InStock: Nz([SumOfInitQty], 0) / [SumOfQty]
    How to attach file: http://www.accessforums.net/showthread.php?t=70301 To provide db: copy, remove confidential data, run compact & repair, zip w/Windows Compression.

Please reply to this thread with any new information or opinions.

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