根据列中的重复项删除Excel中的行

Question

I want to delete the rows in Excel based on duplicate values in a column. Let's say

Column A      Column B
ABC             1
DEF             2
DEF             3
ABC             1

In column B , we have a duplicate value. Going with just the remove duplicate function doesn't help.

Answer 1

好吧，这段代码可以完美地工作

ActiveSheet.Range("$A$1:$B$4").RemoveDuplicates Columns:=Array(1, 2), Header:=xlNo

Answer 2

Maybe not the most optimized solution, but it does the work

Public Sub DeleteDuplicates()
    Dim rng As Range, cell As Range, find As Range, previous As Range
    Set rng = Worksheets("Test").Range("A:A")

    ' For each cell of the column
    For Each cell In rng
        ' Check duplicates only if the cell is not empty
        If Trim(cell) <> "" Then
            ' Search for the same value in column A
            Set find = rng.find(What:=cell, After:=cell, LookAt:=xlWhole, MatchCase:=True)
            ' if a result is found
            If Not find Is Nothing Then
                Do
                    Set previous = Nothing
                    ' If the column B is the same, save the row as "to be deleted"
                    ' The delete is not now otherwise the FindNext won't work
                    If find.Offset(, 1) = cell.Offset(, 1) Then
                        Set previous = find
                    End If

                    Set find = rng.FindNext(find)

                    ' If a duplicate was found, delete the raw
                    If Not previous Is Nothing Then
                        previous.EntireRow.Delete
                    End If

                    ' if no more duplicate, exit the do loop
                    If find Is Nothing Then
                        Exit Do
                    End If

                    ' if address of the result is the same as the clel, exit the do loop
                    If cell.Address = find.Address Then
                        Exit Do
                    End If
                Loop While True
            End If
        End If
    Next
End Sub