Querying in Oracle databse from date time picker using parameters

[BONITO]

hi Sir,

I try code below to query data from my oracle database base on the 2 date time picker .using parameters but i got an error message."missing expression"
please suggest where i made a mistakes
thanks .

   Public Sub loadQuery()
        Dim startDate = dtpFrom.Value.Date
        Dim endDate = dtpTo.Value.Date.AddDays(1)

        Try
            conn.Open()
            cmd.Connection = conn
            cmd.CommandType = CommandType.Text
            dataAdaptor.SelectCommand = cmd
            cmd.CommandText = ("select * from test_table where ERR_DTTM >= @startDate and ERR_DTTM < @endDAte")
            cmd.Parameters.AddWithValue("@startDate", dtpFrom.Value.Date)
            cmd.Parameters.AddWithValue("@endDate", dtpTo.Value.Date.AddDays(1))
            Dim dr As OleDbDataReader = cmd.ExecuteReader
            If dr.HasRows Then
                datatable.Load(dr)
                dgvWCQ.DataSource = datatable
            Else
                MsgBox("no data")

            End If

        Catch ex As Exception
            MsgBox(ex.Message)
        End Try
    End Sub

my program interface