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unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, DB, DBTables;
type
  TForm1 = class(TForm)
    Table1: TTable;
    Button1: TButton;
    OpenDialog1: TOpenDialog;
    procedure Button1Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
begin
 if opendialog1.Execute then
 begin
 if table1.Exists then
  table1.deletetable
  else
  begin
  with table1 do
  begin
   with fielddefs.AddFieldDef do
    begin
     datatype:=ftstring;
     size:=20;
     name:='�Ұ���';
    end;
    with fielddefs.AddFieldDef do
    begin
     datatype:=ftstring;
     size:=20;
     name:='������';
    end;
   createtable;
  end;
  end;
 end;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
with table1 do
 if exists then deletetable;
end;
end.
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unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, DB, DBTables;
type
  TForm1 = class(TForm)
    Table1: TTable;
    Button1: TButton;
    OpenDialog1: TOpenDialog;
    procedure Button1Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
 flag:bool;
begin
 if opendialog1.Execute then
 begin
  flag:=true;
 end;
if flag=true then
 begin
 if table1.Exists then
  table1.deletetable
  else
  begin
  with table1 do
  begin
   with fielddefs.AddFieldDef do
    begin
     datatype:=ftstring;
     size:=20;
     name:='�Ұ���';
    end;
    with fielddefs.AddFieldDef do
    begin
     datatype:=ftstring;
     size:=20;
     name:='������';
    end;
   createtable;
  end;
  end;
 end;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
with table1 do
 if exists then deletetable;
end;
end.
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