Como Incrementar Secuencialmente un Numero de Comprobante Fiscal en sql server

[elanmas]

Buen Dia Olbeup

ya ingrese el FacturaStr, en
<!--<ROW> Transaction.ReceiptTransactionNumber </ROW>-->
</ELSE>
</IF>
</TABLE>
<TABLE>
<BORDER> tbNone </BORDER>
<COLUMNHEADER>
<ALIGNMENT> "&lt;~" </ALIGNMENT>
<WIDTH> PageWidth * 0.70 </WIDTH>
<TEXT> "" </TEXT>
</COLUMNHEADER>
<COLUMNHEADER>
<ALIGNMENT> "&lt;~" </ALIGNMENT>
<WIDTH> PageWidth * 0.50 </WIDTH>
<TEXT> "" </TEXT>
</COLUMNHEADER>
<IF>
<CONDITION> Transaction.ReceiptReferenceNumber </CONDITION>
<THEN>
<ROW> Transaction.ReceiptReferenceNumberCaption </ROW>
</THEN>
</IF>
<ROW>"N°:000-002-01-" Transaction.ReceiptTransactionNumber </ROW>
<!--REGIMEN DE FACTURACION-->


y me da dos errores: 1 compiler error token var was no foud
2 compiler error facturastr was no foud

me puede ayudar a ingresar

var
facturaStr: String;
begin
with ADOQuery1 do
facturaStr := FieldByName('SERIE').AsString + '000-002-' + FormatFloat('00000000', FieldByName('IDFACTURA').AsInteger);
end;

en la parte que necesito

<!--<ROW> Transaction.ReceiptTransactionNumber </ROW>-->
</ELSE>
</IF>
</TABLE>
<TABLE>
<BORDER> tbNone </BORDER>
<COLUMNHEADER>
<ALIGNMENT> "&lt;~" </ALIGNMENT>
<WIDTH> PageWidth * 0.70 </WIDTH>
<TEXT> "" </TEXT>
</COLUMNHEADER>
<COLUMNHEADER>
<ALIGNMENT> "&lt;~" </ALIGNMENT>
<WIDTH> PageWidth * 0.50 </WIDTH>
<TEXT> "" </TEXT>
</COLUMNHEADER>
<IF>
<CONDITION> Transaction.ReceiptReferenceNumber </CONDITION>
<THEN>
<ROW> Transaction.ReceiptReferenceNumberCaption </ROW>
</THEN>
</IF>
<ROW>"N°:000-002-01-" Transaction.ReceiptTransactionNumber </ROW>
<!--REGIMEN DE FACTURACION-->