Script to generate XML files... problem with null values
Hello everyone,I come here with a question that troubled me for some time. I have a script which I run in SQLPLUS every now and then to generate an XML file.
Problem is that the data that must be in XML format are not allways <>NULL and I need to hide empty tags < / tag >.
I'll post my script below and if you could help me with it, it would be really great!
Thanks for reading!
set long 20000000
set long 20000000
set linesize 32000
SET ECHO OFF
SET TRIMSPOOL on
SET HEADING OFF
SET PAGESIZE 50000
SET VERIFY OFF
SET FEEDBACK OFF
SET TERMOUT OFF
spool C:\test.xml
set serveroutput on
begin
dbms_output.put_line('<?xml version="1.0" encoding="utf-8" ?>');
end;
/
SELECT
XMLELEMENT("ReportRoot",XMLATTRIBUTES('http://www.w3.org/2001/XMLSchema-instance' as "xmlns:xsi", 'http://www.w3.org/2001/XMLSchema' as "xmlns:xsd" , '1.0' as "Version",sysdate as "CreationDate",to_char(sysdate,'hh:mm:ss') as "CreationTime",'1524544845' as "id"),
XMLELEMENT("Porocila",XMLELEMENT("JOLY",(SELECT XMLAGG (XMLELEMENT("RefNrReport",replace('SON'||to_char(ref_ST,'00000'),' ',''))) from access_table_2 where ref_ST = &1),
XMLELEMENT("ReportDate",sysdate),XMLELEMENT("Labeling",'545254450'),
(SELECT XMLAGG (XMLELEMENT("Reportf",
XMLELEMENT("access",access),
XMLELEMENT("date",date),
XMLELEMENT("datep",datep),
XMLELEMENT("ModificationInfo",'M'),XMLELEMENT("ModificationReason",modireason)))
from v_xml_test where id_dok = &1 and ind_print = '1'))))
.extract('/*')
from dual
/
spool off
/
exit
Now lets pretend thatXMLELEMENT("datep",datep),
sometimes is NULL and I don't want to see it.
Now lets pretend that
XMLELEMENT("datep",datep),
sometimes is NULL and I don't want to see it.
XMLForest that does exactly:
XMLForest(datep as "datep")
(internally, it is equivalent to what Alex has suggested)
Tags: Oracle Development
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