Check wether a set of data already exists in current worksheet - excel

Question

I have a large table filled with data. What I want to do is check wether a set of data already exists within this table. I have inserted the data I am looking for in a separate worksheet. The Range with the table items I am looking for I called "SearchedData" and the Area where I am checking wether it holds the data I am looking for I called "SearchArea".
My code only shows me the data would exist but in the worksheet I am working on it doesn't so there must be something wrong with my code. Any help on this would be very much appreciated!
Sub CheckWetherDataExists()
Dim SearchedData As Variant
Dim SearchArea As Variant
SearchedData = ThisWorkbook.Worksheets("Tabelle2").Range("C5:G8").Value
SearchArea = ThisWorkbook.Worksheets("Tabelle1").Range("A:E").Value
If SearchArea = SearchedData Then
MsgBox ("Searched Data already exists")
Else: MsgBox ("Searched Data is missing")
End If
End Sub

Answer 1

This is a way more complicated to solve.
Imagine Tabelle2 as following:
And Tabelle1 as following:
I suggest to use the Range.Find method to find the first occurenc of the first cells data here this is represented by 11. And then check if the rest of the data is right/below there too. Do this in a loop until all occurences are checked.
So in Tabelle1 the yellow areas will be ckecked but the only full match is at A14:E17 which will be considered as duplicate.
Option Explicit
Public Sub CheckIfDataExists()
Dim wsSearch As Worksheet
Set wsSearch = ThisWorkbook.Worksheets("Tabelle1")
Dim SearchRange As Range
Set SearchRange = wsSearch.Range("A1", wsSearch.Cells(wsSearch.Rows.Count, "A").End(xlUp))
Dim SearchData() As Variant 'data array
SearchData = ThisWorkbook.Worksheets("Tabelle2").Range("C5:G8").Value
Dim FoundData() As Variant
'remember first find to prevent endless loop
Dim FirstFoundAt As Range
Set FirstFoundAt = SearchRange.Find(What:=SearchData(1, 1), After:=SearchRange.Cells(1, 1), LookIn:=xlValues, LookAt:=xlWhole, MatchCase:=False)
If Not FirstFoundAt Is Nothing Then
Dim FoundAt As Range
Set FoundAt = FirstFoundAt
Do
Set FoundAt = SearchRange.Find(What:=SearchData(1, 1), After:=FoundAt, LookIn:=xlValues, LookAt:=xlWhole, MatchCase:=False)
If Not FoundAt Is Nothing Then
FoundAt.Resize(UBound(SearchData, 1), UBound(SearchData, 2)).Select
FoundData = FoundAt.Resize(UBound(SearchData, 1), UBound(SearchData, 2)).Value
If AreArraysEqual(SearchData, FoundData) Then
MsgBox "data found at " & FoundAt.Resize(UBound(SearchData, 1), UBound(SearchData, 2)).Address
Exit Sub
End If
End If
Loop Until FoundAt Is Nothing Or FirstFoundAt.Row >= FoundAt.Row
End If
MsgBox "data not found"
End Sub
Private Function AreArraysEqual(Arr1 As Variant, Arr2 As Variant) As Boolean
Dim iRow As Long, iCol As Long
'default
AreArraysEqual = True
For iRow = LBound(Arr1, 1) To UBound(Arr1, 1)
For iCol = LBound(Arr1, 2) To UBound(Arr1, 2)
If Arr1(iRow, iCol) <> Arr2(iRow, iCol) Then
AreArraysEqual = False
Exit Function
End If
Next iCol
Next iRow
End Function

Answer 2

I believe this code will do what you want reasonably fast.
Sub CheckWetherDataExists()
Dim SearchedData As Variant
Dim SearchArea As Variant
Dim LookFor() As String
Dim LookIn() As String
Dim R As Long, C As Long
SearchedData = ThisWorkbook.Worksheets("Tabelle2").Range("C5:G8").Value
LookFor = MergedRows(SearchedData)
With ThisWorkbook.Worksheets("Tabelle1")
SearchArea = .Range(.Cells(2, 1), .Cells(.Rows.Count, 5).End(xlUp)).Value
End With
LookIn = MergedRows(SearchArea)
For R = 1 To UBound(LookIn)
If LookIn(R) = LookFor(1) Then
If R < UBound(LookIn) - 2 Then
For C = 2 To UBound(LookFor)
If LookIn(R + C - 1) <> LookFor(C) Then Exit For
Next C
If C > UBound(LookFor) Then
MsgBox "Match found in Row " & R
Exit For
End If
End If
End If
Next R
End Sub
Private Function MergedRows(RngVal As Variant) As String()
Dim Fun() As String
Dim R As Long, C As Long
ReDim Fun(1 To UBound(RngVal))
For R = 1 To UBound(RngVal)
For C = 1 To UBound(RngVal, 2)
Fun(R) = Fun(R) & "," & RngVal(R, C)
Next C
Next R
MergedRows = Fun
End Function
The code creates merged strings of 5 cells of both the SearchedData and the SearchArea data. This job is done by the Function MergedRows. In the process the SearchedData turn into array LookFor(1 To 3) and LookIn(1 To LastRow). Next the first element (representing a row) of LookFor is compared to each element (representing a row) of LookIn. If a match is found the other two rows are also compared. When all three elements (rows) match a message is issued and the search is terminated.