What experience do you have with VBA?
What columns contain the data?
what makes the record "unique"
 
Here's what I would do:
 
Copy the first sheet to make the "Summary" page.
 
then use:
 
Option Explicit
Sub UniqueNames()
    Dim sCnt As Integer
    Dim rCnt As Integer
    Dim R As Integer
    Dim sht
    Dim Dict_Unique
    Dim tArray
    
    Set Dict_Unique = CreateObject("Scripting.Dictionary")
        Dict_Unique.RemoveAll
    
    sCnt = 
Application.WorksheetFunction.CountA(ActiveWorkbook.Sheets("Summary").Range("A1:A65000"))
    For R = 2 To sCnt
        ' (Assumes "Lastname, FirstName" is unique)
        If (Not Dict_Unique.exists(UCase(Sheets("Summary").Cells(R, "A").Value 
& ", " & Sheets("Summary").Cells(R, "B").Value))) Then
                Dict_Unique.Add UCase(Sheets("Summary").Cells(R, "A").Value & 
", " & Sheets("Summary").Cells(R, "B").Value), Sheets("Summary").Name
        End If
    Next R
    
    For sht = 1 To Sheets.Count
        If (Sheets(sht).Name <> "Summary") Then
            rCnt = 
Application.WorksheetFunction.CountA(ActiveWorkbook.Sheets(sht).Range("A1:A65000"))
            For R = 2 To rCnt
                If (Not Dict_Unique.exists(UCase(Sheets(sht).Cells(R, 
"A").Value & ", " & Sheets(sht).Cells(R, "B").Value))) Then
                        Dict_Unique.Add UCase(Sheets(sht).Cells(R, "A").Value & 
", " & Sheets(sht).Cells(R, "B").Value), Sheets(sht).Name
                    sCnt = sCnt + 1
                    Sheets("Summary").Cells(sCnt, "A").Value = 
Sheets(sht).Cells(R, "A").Value
                    Sheets("Summary").Cells(sCnt, "B").Value = 
Sheets(sht).Cells(R, "B").Value
                    Sheets("Summary").Cells(sCnt, "C").Value = 
Sheets(sht).Cells(R, "C").Value
                End If
            Next R
        End If
    Next sht
End Sub
 
 

Paul
-----------------------------------------
“Do all the good you can,
By all the means you can,
In all the ways you can,
In all the places you can,
At all the times you can,
To all the people you can,
As long as ever you can.” - John Wesley
-----------------------------------------

 From: Maria Carmel <maria.car...@gmail.com>
>To: excel-macros@googlegroups.com 
>Sent: Tuesday, November 25, 2014 7:19 AM
>Subject: $$Excel-Macros$$ accumulating data
>  
>
>
>Hello,
>i need help with creating a "name and b-day" list that accumulates data () 
>from different worksheets of one excel file.
>new worksheets added constantly with the same columns (among them names and 
>b-days)
>i need that all the new data from new worksheets will be added to the same one 
>"name and b-day" list. 
>Thank you in advance!
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-- 
Are you =EXP(E:RT) or =NOT(EXP(E:RT)) in Excel? And do you wanna be? It’s 
=TIME(2,DO:IT,N:OW) ! Join official Facebook page of this forum @ 
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FORUM RULES

1) Use concise, accurate thread titles. Poor thread titles, like Please Help, 
Urgent, Need Help, Formula Problem, Code Problem, and Need Advice will not get 
quick attention or may not be answered.
2) Don't post a question in the thread of another member.
3) Don't post questions regarding breaking or bypassing any security measure.
4) Acknowledge the responses you receive, good or bad.
5) Jobs posting is not allowed.
6) Sharing copyrighted material and their links is not allowed.

NOTE  : Don't ever post confidential data in a workbook. Forum owners and 
members are not responsible for any loss.
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