Item From Database to Textbox?

How to display the size of tblmountertrace_1 (to) 9 to text box? Please see picture:


Im using this code but I dont know how to query. I put it on the Timer (timSERVERSIZE) to update every 4 Hours a day.

        Private Sub timSERVERSIZE_Tick(sender As Object, e As EventArgs) Handles timSERVERSIZE.Tick
        Dim cmd2 As New MySqlCommand
        Dim myDA2 As New MySqlDataAdapter(cmd2)
        Dim myDT2 As New DataTable
        cmd2.Connection = conn
        cmd2.CommandText = "SELECT * FROM esd_reco ?????????????????????????????????????"
        myDA2.Fill(myDT2)
        TextBox1.items.add(myDA2)  <<<<<<<<<<<<??????????????????????????


    End Sub

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Thanks for the help