Ask again, jdbc response

Question

I designed process to figure out how to get the records count of jdbc response.
after step send db request with synchronize mode, there is a transformation step to get count.(mapping with count function to rows of DB response). The result is always is 0.
But when I add a send step, which send db response message to file, I can see all the response content.
I don't know why.
How could I get the records count of DB response?
Thank you very much.

Answer 1

not understand you.
DB response is this:
<?xml version="1.0" encoding="UTF-8"?>
<ns0:jdbc_req_response xmlns:ns0="http://aaa.com/jdbc_syn">
<ExecuteStatement1_response>
     <row>
          <LIBID>2001</LIBID>
          <LIBNAME>Zoral</LIBNAME>
          <LIBADDRESS>Shanghai</LIBADDRESS>
     </row>
     <row>
          <LIBID>2001</LIBID>
          <LIBNAME>Zoral</LIBNAME>
          <LIBADDRESS>Shanghai</LIBADDRESS>
     </row>
     <row>
          <LIBID>2001</LIBID>
          <LIBNAME>Zoral</LIBNAME>
          <LIBADDRESS>Shanghai</LIBADDRESS>
     </row>
     <row>
          <LIBID>2001</LIBID>
          <LIBNAME>Zoral</LIBNAME>
          <LIBADDRESS>Shanghai</LIBADDRESS>
     </row>
</ExecuteStatement1_response>
</ns0:jdbc_req_response>
I use count function :
row->count->size. But got 0.
It is one message, why I need correlation?