Find duplicate values in column VBA

[mihaiil]

Hi all,
I want to create a macro which loops through all the cells from a certain row(which will be filtered alphabetically by me before running the macro - just to ease the work) and if it finds the same values in the cells below, to write their respective values from other rows in a new sheet and then export it(this part is already take care of). E.g. :
Column A | Column B
------------------------------
Value 1 | 2
Value 1 | 3
Value 2 | 1
Value 2 | 14
Value 2 | 15
Value 3 | 1
So in the end i would need 3 sheets printed: first sheet with values 2 and 3, second sheet with values 1, 14 & 15 and third sheet with value 1.

Thank you very much in advance.

 

[Peter_SSs]

Welcome to the MrExcel board!

See if you can make use of my suggestions in this thread. make sure you check the assumptions as well as the code.

 

[pboltonchina]

Try this that was kindly supplied from this forum

Option Explicit

Sub ParseItems()
'Jerry Beaucaire  (11/11/2009)
'Based on selected column, data is filtered to individual sheets
'Creates sheets and sorts sheets alphabetically in workbook
'6/10/2010 - added check to abort if only one value in vCol
Dim LR As Long, Itm As Long, MyCount As Long, vCol As Long
Dim ws As Worksheet, MyArr As Variant, vTitles As String, Oops As Boolean

Application.ScreenUpdating = False

'Column to evaluate from, column A = 1, B = 2, etc.
   vCol = 1
 
'Sheet with data in it
   Set ws = Sheets("Data")

'Range where titles are across top of data, as string, data MUST
'have titles in this row, edit to suit your titles locale
    vTitles = "A1:E1"
   
'Spot bottom row of data
   LR = ws.Cells(ws.Rows.Count, vCol).End(xlUp).Row

'Get a temporary list of unique values from column A
    ws.Columns(vCol).SpecialCells(xlConstants).AdvancedFilter Action:=xlFilterCopy, _
        CopyToRange:=ws.Range("EE1"), Unique:=True

'Sort the temporary list
    ws.Columns("EE:EE").Sort Key1:=ws.Range("EE2"), _
        Order1:=xlAscending, Header:=xlYes, OrderCustom:=1, _
        MatchCase:=False, Orientation:=xlTopToBottom, _
        DataOption1:=xlSortNormal

'Check for more than one value in list
    If ws.Range("EE" & Rows.Count).End(xlUp).Row > 2 Then

'Put list into an array for looping
'(values cannot be the result of formulas, must be constants)
        MyArr = Application.WorksheetFunction.Transpose(ws.Range("EE2:EE" _
            & Rows.Count).SpecialCells(xlCellTypeConstants))

'clear temporary worksheet list
        ws.Range("EE:EE").Clear

    Else
        ws.Range("EE:EE").Clear
        Oops = True
        GoTo ErrorExit
    End If
    
'Turn on the autofilter, one column only is all that is needed
    ws.Range(vTitles).AutoFilter

'Loop through list one value at a time
    For Itm = 1 To UBound(MyArr)
        ws.Range(vTitles).AutoFilter Field:=vCol, Criteria1:=MyArr(Itm)
    
        If Not Evaluate("=ISREF('" & MyArr(Itm) & "'!A1)") Then    'create sheet if needed
            Worksheets.Add(After:=Worksheets(Worksheets.Count)).Name = MyArr(Itm)
        Else                                                      'clear sheet if it exists
            Sheets(MyArr(Itm)).Move After:=Sheets(Sheets.Count)
            Sheets(MyArr(Itm)).Cells.Clear
        End If

    'customize this section as needed for copy/paste targets
        ws.Range("A" & ws.Range(vTitles).Resize(1, 1).Row & ":A" & LR) _
            .EntireRow.Copy Sheets(MyArr(Itm) & "").Range("A1")

        
        ws.Range(vTitles).AutoFilter Field:=vCol
        MyCount = MyCount + Sheets(MyArr(Itm)) _
            .Range("A" & Rows.Count).End(xlUp).Row - 1
        Sheets(MyArr(Itm)).Columns.AutoFit
    Next Itm
    
'Cleanup
    ws.AutoFilterMode = False
    MsgBox "Rows with data: " & (LR - 1) & vbLf & "Rows copied to other sheets: " _
                & MyCount & vbLf & "Hope they match!!"

ErrorExit:
    If Oops Then MsgBox "Only one value found, aborting parse process..."
    Application.ScreenUpdating = True
End Sub

 

[VoG]

Also see http://www.mrexcel.com/forum/showthread.php?t=396069