具体怎么操作。。
在数据库创建一个表MDF 和两个字段 id VARCHAR2(20), mdf BLOB,
procedure TForm1.Button1Click(Sender: TObject);
var
a:TMemoryStream;
begin
a:=TMemoryStream.Create;
a.LoadFromFile('C:\Documents and Settings\Administrator\桌面\main.exe');
ADOquery1.append;
TBlobField(ADOquery1.FieldByName('mdf')).LoadFromStream(a);
ADOquery1.Post;
end;
procedure TForm1.Button2Click(Sender: TObject);
var
a:TMemoryStream;
begin
a:=TMemoryStream.Create;
TBlobField(ADOquery1.FieldByName('mdf')).SaveToStream(a);
a.SaveToFile('C:\Documents and Settings\Administrator\桌面\lxzwhb\main\lxzmain.exe');
end;