ALTERAR COLUNAS

      Dim conn As New MySqlConnection
        Dim cmd As New MySqlCommand
        Dim myAdapter As New MySqlDataAdapter
        Dim myData As New DataTable
        Dim SQL As String

       
        

        conn = New MySqlConnection
        conn.ConnectionString = [Ô]server=localhost;user id=root;password=123456;database=test[Ô]
        SQL = [Ô]SELECT idtest_bd, name_bd  FROM 'test'.'test_bd';[Ô]


        Try
            conn.Open()
            Try
                cmd.Connection = conn
                cmd.CommandText = SQL
                myAdapter.SelectCommand = cmd
                myAdapter.Fill(myData)
                DataGridView1.DataSource = myData

                conn.Close()
            Catch myerro As MySqlException
                MsgBox(myerro.Message)
            Finally

            End Try

            conn.Close()
        Catch myerro As MySqlException
            MsgBox(myerro.Message)

        Finally
            conn.Close()
        End Try