Exportar Excel para SQL usando VBA

Dim conn As ADODB.Connection
Dim cmd As ADODB.Command

Dim strSQL As String

strSQL = "INSERT INTO dbo.TimeLog " & _
    "(RecordedPeriod, EventDate, ID, DeptCode, Opcode, StartTime, FinishTime, Units) " & _
"VALUES (?,?,?,?,?,?,?,?);"

Set conn = New ADODB.Connection
conn.Open ""Provider=SQLOLEDB;Data Source=db1\db1;Initial Catalog=ProdTrack;Integrated Security=SSPI;"
'Skip the header row
iRowNo = 2"

Set cmd = New ADODB.Command

cmd.ActiveConnection = conn
cmd.CommandType = adCmdText
cmd.CommandText = strSQL

iRowNo = 2

With Sheets("Sheet1")
  'Loop until empty cell in FirstName
  Do Until .Cells(iRowNo, 1) = ""

  cmd.Parameters.Append _
    cmd.CreateParameter("pRecordedPeriod", adDBTimeStamp, adParamInput, 8, .Cells(iRowNo, 1))
  cmd.Parameters.Append _
    cmd.CreateParameter("pEventDate", adVarChar, adParamInput, 8, .Cells(iRowNo, 2))
  cmd.Parameters.Append _
    cmd.CreateParameter("pID", adInteger, adParamInput, , .Cells(iRowNo, 3))
  cmd.Parameters.Append _
    cmd.CreateParameter("pDeptCode", adVarChar, adParamInput, 2, .Cells(iRowNo, 4))
  cmd.Parameters.Append _
    cmd.CreateParameter("pOpCode", adVarChar, adParamInput, 2, .Cells(iRowNo, 5))
  cmd.Parameters.Append _
    cmd.CreateParameter("pStartTime", adDBTime, adParamInput, 0, .Cells(iRowNo, 6))
  cmd.Parameters.Append _
    cmd.CreateParameter("pFinishTime", adDBTime, adParamInput, 0, .Cells(iRowNo, 7))
  cmd.Parameters.Append _
    cmd.CreateParameter("pUnits", adInteger, adParamInput, , .Cells(iRowNo, 8))

  cmd.Execute

  iRowNo = iRowNo + 1
  Loop
End With

conn.Close
Set conn = Nothing