Comparison operator in excel macros

[vensriram]

I am trying to compare each cell in a i.e. A1 with B1 and if it is true i will populate the cell F1 with A1 value.....But irrespective of my input values the if condition becomes true....can anybody help me in this. My code goes like this

Sub Macro3()
'
' Macro3 Macro
'
    Dim i As Integer
    i = 1
    For i = 1 To 10
        If (Range("A" & i).Select = Range("B" & i).Select) Then
            Range("A" & i).Select
            Selection.Copy
            Range("F" & i).Select
            ActiveSheet.Paste
        End If
    Next i
    
      
End Sub

[Guido Geurs]

Don't use .Select but .Value
Don't Copy and Paste but set directly the value with .Offset

    Dim i As Integer
    i = 1
    For i = 1 To 10
        If (Range("A" & i).Value = Range("B" & i).Value) Then _
            Range("A" & i).Offset(0, 5) = Range("A" & i).Value
    Next i

[vensriram]

@Guido Geurs:- thanks for ur useful suggestion

[vensriram]

Now i have a problem with the performance. I use 2 excel to perform the task. I compare each row of EXCEL1 with all the rows of EXCEL2.
So as the number of rows increases my excel crashes due to the for loop. My code is

Sub Macro3()
'
' Macro3 Macro
'
    Dim a As Integer
    Dim j As Integer
    Windows("ptimesheet.xlsm").Activate
    Dim B As String
    Dim TRACKERNAME As String
    Dim TRACKERDATE As Date
    Dim TRACKERACTIVITY As String
    Dim TRACKERSUBACTIVITY As String
    Dim CAPACITY_DATE As Date
    Dim CAPACITY_ACTIVITY As String
    Dim CAPACITY_SUBACTIVITY As String
    Dim ACTUALEFFORTS As Double
    Dim ACTUALEFFORTS1 As Double
    Dim rowcount_capacity As Integer
    Dim rowcount_tracker As Integer
    ACTUALEFFORTS1 = 0
    Windows("E4402_PCG_Capacity Planning_IML_Oct11.xlsm").Activate
    rowcount_capacity = ActiveSheet.Cells.SpecialCells(xlLastCell).Row
    For a = 3 To rowcount_capacity
        Windows("E4402_PCG_Capacity Planning_IML_Oct11.xlsm").Activate
        CAPACITY_DATE = Range("A" & a).Value
        CAPACITY_NAME = Range("C" & a).Value
        CAPACITY_ACTIVITY = Range("F" & a).Value
        CAPACITY_SUBACTIVITY = Range("G" & a).Value
       Windows("ptimesheet.xlsm").Activate
       rowcount_tracker = ActiveSheet.Cells.SpecialCells(xlLastCell).Row
        For j = 1 To rowcount_tracker
           Windows("ptimesheet.xlsm").Activate
           TRACKERDATE = Range("A" & j).Value
           TRACKERNAME = Range("H" & j).Value
           TRACKERACTIVITY = Range("B" & j).Value
           TRACKERSUBACTIVITY = Range("C" & j).Value
            On Error Resume Next
            Windows("E4402_PCG_Capacity Planning_IML_Oct11.xlsm").Activate
                If CAPACITY_DATE = TRACKERDATE Then
                    If CAPACITY_NAME = TRACKERNAME Then
                        If CAPACITY_ACTIVITY = TRACKERACTIVITY Then
                            If CAPACITY_SUBACTIVITY = TRACKERSUBACTIVITY Then
                                Windows("ptimesheet.xlsm").Activate
                                ACTUALEFFORTS = Range("F" & j).Value
                                ACTUALEFFORTS1 = ACTUALEFFORTS + ACTUALEFFORTS1
                                Windows("E4402_PCG_Capacity Planning_IML_Oct11.xlsm").Activate
                                Range("L" & a).Value = ACTUALEFFORTS1
                                ACTUALEFFORTS = 0
                                ACTUALEFFORTS1 = 0
                             End If
                        End If
                    End If
                End If
        Next j
    Next a
        
      
End Sub

[Guido Geurs]

If you use sheets with much rows (records) then it's better to use arrays (tables in the memory): it's much, much faster !!

Is it possible to attach in Bytes a demo workbook with +- 10 records?
If it's delicate information you can change it with fictive names and values.
I just need to see the structure to do some tests.