mainunit.pas

数据库操作的简单例子 本程序是SQL的连接和初步使用。 一是要注册ODBC数据源

unit MainUnit;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, StdCtrls, Grids, DBGrids,DataUnit,InputUnit;

type
  TForm1 = class(TForm)
    Panel1: TPanel;
    DBGrid1: TDBGrid;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure FormShow(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
InputForm.ShowModal;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
data.Table1.Delete;
end;

procedure TForm1.FormShow(Sender: TObject);
begin
Count:=0;
Data.Table1.First;
while not Data.Table1.Eof do
begin
Data.Table1.Next;
Count:=Count+1;
end;
Count:=Count+1;
end;

end.