Insert new records only into SQL Table Using VBA

Question

I have an Excel workbook with the below code -

Sub Button1_Click()
    Dim conn As New ADODB.Connection
    Dim iRowNo         


        

Answer 1

You can use sql query like this:

IF Exists ( Select 1 from dbo.customers where Firstname = '" & sFirstName & "' and LastName = '" & sLastName & "' THEN Update dbo.customers set --other columns where Firstname = '" & sFirstName & "' and LastName = '" & sLastName & "'
ELSE Insert into dbo.Customers (FirstName, LastName) " & _
                     "values ('" & sFirstName & "', '" & sLastName & "')"

Not sure about the syntax for excel and C#, you can correct that similar to this query