谁能给我举个数据库备份和数据库恢复的例子！（能上机实现的那种）轻易20分！

Question

本人对opendialog,savedialog不太熟，保存文本形式还可以，对于保存表就不太会了，能实现从多表中实现有选择的备份成一个表么？谢谢！

Answer 1

sqlserver的备份恢复
8).备份和恢复
    procedure TForm1.Button1Click(Sender: TObject);
    begin
      if OpenDialog1.Execute then
      begin
        try
          adoconnection1.Connected:=False;
          adoconnection1.ConnectionString:='Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=master;Data Source=FRIEND-YOFZKSCO;'+
          'Use Procedure for Prepare=1;Auto Translate=True;Packet Size=4096;Workstation ID=FRIEND-YOFZKSCO;Use Encryption for Data=False;Tag with column collation when possible=False';
          adoconnection1.Connected:=True;
          with adoQuery1 do
          begin
            Close;
            SQL.Clear;
            SQL.Add('Backup DataBase sfa to disk ='''+opendialog1.FileName+'''');
            ExecSQL;
          end;
        except
          ShowMessage('±?·Y꧰ü');
        Exit;
        end;
      end;
      Application.MessageBox('1§?2?ú￡?êy?Y±?·Y3é1|','ìáê?',MB_OK + MB_ICONINFORMATION);
    end;
    procedure TForm1.Button2Click(Sender: TObject);
    begin
      if OpenDialog1.Execute then
      begin
        try
          adoconnection1.Connected:=false;
          adoconnection1.ConnectionString:='Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=master;Data Source=FRIEND-YOFZKSCO;'+
          'Use Procedure for Prepare=1;Auto Translate=True;Packet Size=4096;Workstation ID=FRIEND-YOFZKSCO;Use Encryption for Data=False;Tag with column collation when possible=False';
          adoconnection1.Connected:=true;
          with adoQuery1 do
          begin
            Close;
            SQL.Clear;
            SQL.Add('Restore DataBase sfa from disk ='''+opendialog1.FileName+'''');
            ExecSQL;
         end;
       except
         ShowMessage('???′꧰ü');
         Exit;
       end;
     end;
     Application.MessageBox('1§?2?ú￡?êy?Y???′3é1|','ìáê?',MB_OK + MB_ICONINFORMATION);
    end;

Answer 2

    procedure TForm1.Button1Click(Sender: TObject);
    begin
      if OpenDialog1.Execute then
      begin
        try
          adoconnection1.Connected:=False;
          adoconnection1.ConnectionString:='Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=master;Data Source=FRIEND-YOFZKSCO;'+
          'Use Procedure for Prepare=1;Auto Translate=True;Packet Size=4096;Workstation ID=FRIEND-YOFZKSCO;Use Encryption for Data=False;Tag with column collation when possible=False';//楼上的能解释一下从data source=friend-yofzksco到最后什么意思么？详细点！谢谢
          adoconnection1.Connected:=True;
          with adoQuery1 do
          begin
            Close;
            SQL.Clear;
            SQL.Add('Backup DataBase sfa to disk ='''+opendialog1.FileName+'''');//sfa 是什么是一个表么解释一下，谢谢！
            ExecSQL;
          end;
        except
          ShowMessage('±?·Y꧰ü');
        Exit;
        end;
      end;
      Application.MessageBox('1§?2?ú￡?êy?Y±?·Y3é1|','ìáê?',MB_OK + MB_ICONINFORMATION);
    end;
    procedure TForm1.Button2Click(Sender: TObject);
    begin
      if OpenDialog1.Execute then
      begin
        try
          adoconnection1.Connected:=false;
          adoconnection1.ConnectionString:='Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=master;Data Source=FRIEND-YOFZKSCO;'+
          'Use Procedure for Prepare=1;Auto Translate=True;Packet Size=4096;Workstation ID=FRIEND-YOFZKSCO;Use Encryption for Data=False;Tag with column collation when possible=False';
          adoconnection1.Connected:=true;
          with adoQuery1 do
          begin
            Close;
            SQL.Clear;
            SQL.Add('Restore DataBase sfa from disk ='''+opendialog1.FileName+'''');
            ExecSQL;
         end;
       except
         ShowMessage('???′꧰ü');
         Exit;
       end;
     end;
     Application.MessageBox('1§?2?ú￡?êy?Y???′3é1|','ìáê?',MB_OK + MB_ICONINFORMATION);
    end;

Answer 3

保存桌面数据库用COPYFILE是不错的，如果是SQL SERVER之类的，就参考一下这里：http://218.56.11.178:8020/web/index.aspx-》 下载基地-》例程-数据库/报表-》SQL SERVER 2000 与Delphi7实现数据库备份