This unit provide two functions:

function RecordsetToXML(const Recordset: _Recordset): String;
function RecordsetFromXML(const XML: String): _Recordset;

They are very usefull for export/import operations.

unit ADOXMLUnit;

interface

uses
  Classes, ADOInt;

function RecordsetToXML(const Recordset: _Recordset): String;
function RecordsetFromXML(const XML: String): _Recordset;

implementation

uses
  ComObj;

{
  Example:
  ...
    Memo1.Lines.Text:=RecordsetToXML(ADOQuery1.Recordset);
  ...
}
function RecordsetToXML(const Recordset: _Recordset): String;
var RS: Variant;
    Stream: TStringStream;
begin
  Result:='';
  if Recordset=nil then Exit;
  Stream:=TStringStream.Create('');
  try
    RS:=CreateOleObject('ADODB.Recordset');
    RS:=Recordset;
    RS.Save(TStreamAdapter.Create(stream) as IUnknown, adPersistXML);
    Stream.Position:=0;
    Result:=Stream.DataString;
  finally
    Stream.Free;
  end;
end;

{
  Example:
  ...
    ADOQuery1.Recordset:=RecordsetFromXML(Memo1.Lines.Text);
  ...
}
function RecordsetFromXML(const XML: String): _Recordset;
var RS: Variant;
    Stream: TStringStream;
begin
  Result:=nil;
  if XML='' then Exit;
  try
    Stream:=TStringStream.Create(XML);
    Stream.Position:=0;
    RS:=CreateOleObject('ADODB.Recordset');
    RS.Open(TStreamAdapter.Create(Stream) as IUnknown);
    Result:=IUnknown(RS) as _Recordset;
  finally
    Stream.Free;
  end;
end;

end.