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Count Net Days of Overlapping Dates

  1. #1
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    Count Net Days of Overlapping Dates

    All,

    I'm struggling with the following. I have a table that includes a list of help desk tickets for a number of systems that have Date Recorded and Date Resolved dates. Each help desk ticket also includes a column for total days the ticket was open (e.g., Date Resolved - Date Recorded). Some tickets are "open" and do not have resolved dates - in which case the total downtime for that ticket would be today - date recorded. The tickets are also categorized as "down", "degraded", or "up". I'd only like to calculate the "down" ticket days.

    I'm wanting to count the total NET down days for the systems and sub-areas included for "down" tickeets. For example, if for system X section 1, ticket 1 was opened 5/10/18 and closed on 5/12/18, and ticket two was opened 5/10/18 and was closed on 5/15/18, the total net days for system X section 1 would be 6 days (e.g., 5/10/18 to 5/15/18) and not 9 days (e.g., 5/10/18-5/12/18 [3 days] + 5/10/18-5/15/18 [6]).

    I was wondering if there was any way to accomplish this in a button-activated macro. I've attached an example workbook to provide additional clarity.

    Best,
    Chris
    Attached Files Attached Files

  2. #2
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    Re: Count Net Days of Overlapping Dates

    See attached sample.
    Cells F12:F16 give you the result you want.
    I have used E12:E16 as helper cells to simplify the formula in F12:F16.
    E12:E16 represent number of times Down appears for each Sector, Section combo.
    If it's 0 then number of days in F12:F16 gets zeroed out.

    On thing I had to do was to put today's date in F5.
    This one didn't have a date so you are supposed to use today's date to figure out net days.

    I am sure someone will offer more concise solution but hopefully this will help you somewhat.

    Formula in F12:F16

    HTML Code: 
    it's an array formula entered with ctrl+shft+ent.
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    Modytrane

  3. #3
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    Re: Count Net Days of Overlapping Dates

    If you don't want to use helper cells, here's the formula combining E12 and F12.
    You can enter this in F12 and copy down.

    HTML Code: 
    P.S: It's an array formula.

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    Re: Count Net Days of Overlapping Dates

    VBA
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  5. #5
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    Re: Count Net Days of Overlapping Dates

    Wow! Great solutions modytrane & jindon! This works perfectly!

    Jindon, is there a way to add one more wrinkle to your script? Some tickets are submitted with "All sections" in the second column. For example, Sector 1 may have a ticket come in that says "All Sections". The downtime would then apply to all sections within Sector 1 (with the same overlapping logic applying).

    Is this possible? I've re-attached the example sheet as reference.

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    Re: Count Net Days of Overlapping Dates

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