JDBC Adapter :: Missing Column Headings

Question

Hi,
I was wondering if anyone has encountered this issue with the JDBC sender adapter. After executing the following SQL select statement:
SELECT rake_yem, rake_serial_no
FROM rt_rake_ore_wt_smy
WHERE reading_datetime > SYSDATE - 2
The JDBC Sender adapter returns the following XML structure:
<?xml version="1.0" encoding="utf-8"?>
<RakeOreWeightSummaryReadings>
  <row>
    <>2006</>
    <RAKE_YEM>2226A</RAKE_YEM>
  </row>
  <row>
    <>2006</>
    <RAKE_YEM>2226B</RAKE_YEM>
  </row>
  <row>
    <>2006</>
    <RAKE_YEM>2229A</RAKE_YEM>
  </row>
  <row>
    <>2006</>
    <RAKE_YEM>2229B</RAKE_YEM>
  </row>
  <row>
    <>2006</>
    <RAKE_YEM>2223B</RAKE_YEM>
  </row>
</RakeOreWeightSummaryReadings>
In this case, the first column heading is blank. This leads to an XML parsing problem, and hence it cannot be processed by SAP XI.
The incidence of blank columns appears to be inconsistent. i.e. It does not matter how many columns I select, as some columns will always be blank.
Any help would be greatly appreciated.
regards,
Carl Engel.

Answer 1

Hi Naveen,
No luck I'm afraid. I changed the SQL statement to:
SELECT rake_yem as RAKE_YEM, rake_serial_no as RAKE_SERIAL_NO FROM rt_rake_ore_wt_smy WHERE reading_datetime > SYSDATE - 2
And the JDBC adapter returned with:
<?xml version="1.0" encoding="utf-8"?>
<RakeOreWeightSummaryReadings>
     <row>
          <>2006</>
          <RAKE_YEM>2229A</RAKE_YEM>
     </row>
     <row>
          <>2006</>
          <RAKE_YEM>2229B</RAKE_YEM>
     </row>
     <row>
          <>2006</>
          <RAKE_YEM>2223B</RAKE_YEM>
     </row>
etc.....
Though I'm beginning to suspect that this problem may be associated between Oracle versions. The integration server is running Oracle 9.2 Client, and it is accessing a database running Oracle 7.3.3.5.
Though since the data is retrieved without issues, I'm still not sure. Is there any other form of diagnostic logs that I could examine re: this issue?
thanks,
Carl.