unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, DB, Grids, DBGrids, ADODB;

type
  TForm1 = class(TForm)
    cn: TADOConnection;
    DataSet: TADODataSet;
    DBGrid1: TDBGrid;
    DataSource1: TDataSource;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin

 cn.OpenSchema(siColumns, EmptyParam, EmptyParam, DataSet);

end;

procedure TForm1.Button2Click(Sender: TObject);
begin
   DataSet.Close;
   DataSet.CommandText:='sp_helptext custorderhist;';
   DataSet.Open;
end;

end.