How to use if statement in sas XML

[Shantaram]

I am trying to implement if condition inside XML file.

Sample code

proc sql;
create table transformed_data as
select * from mig_test.transformed_data;
quit;

data _null_;
set transformed_data;
file "$FSAGQS/BD/transfers2/TEST_Shan1.xml";
if _n_=1 then
do;
put '<?xml version="1.0" encoding="UTF-8"?>';
put '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:type="http://www.quinity.com/qis/soap/qisxmlpolicyrequestservice/type">';
put '<soapenv:Header />';
put '<soapenv:Body>';
put '<handlePolicyApplicationRequest>';
put '<policyRequest>';

Put '<applicationForm>';
Put '<applicationFormGroupList>';
put '<applicationFormGroup>';
put '<formGroupRef>';
put '<externalIdentifier>Startdate</externalIdentifier>';
put '</formGroupRef>';
put '<applicationFormQuestionList>';
put '<applicationFormQuestion>';
put '<formQuestionRef>';
put '<externalIdentifier>PolSTDT</externalIdentifier>';
put '</formQuestionRef>';
%if %superq(ID_01) ='' %then %Do;
put '<answer>';
put '<value/>';
put '</answer>';
%End;
%else %Do;
put '<answer>';
put '<value>' ID_01 +(-1) '</value>';
put '</answer>';
%end;
put '</applicationFormQuestion>';
put '</applicationFormQuestionList>';
put '</applicationFormGroup>';

put '<applicationFormGroup>';
put '<formGroupRef>';
put '<externalIdentifier>Productcode</externalIdentifier>';
put '</formGroupRef>';
put '<applicationFormQuestionList>';
put '<applicationFormQuestion>';
put '<formQuestionRef>';
put '<externlIdentifier>ProductName</externalIdentifier>';
put '</formQuestionRef>';
%if ID_02 IS MISSING %then %do;
put '<answer>';
put '</value>';
put '</answer>';
%end;
%else %do;
put '<answer>';
put '<value>' ID_02 +(-1) '</value>';
put '</answer>';
%end;
put '</applicationFormQuestion>';
put '</applicationFormQuestionList>';
put '</applicationFormGroup>';

put '</applicationFormGroupList>';
put '</applicationForm>';
put '</policyRequest>';
put '</handlePolicyApplicationRequest>';
put '</soapenv:Body>';
put '</soapenv:Envelope>';
end;
run;

[Oligolas]

You've posted the same question here 

[Shantaram]

Thanks Oligolas
Its with if statement and another one is with macro.

[Oligolas]

I see,

so ID_01 is a numeric value from your dataset. In this case you do not need any macro code.

what you want instead of 

%if %superq(ID_01) ='' %then %Do;
put '<answer>';
put '<value/>';
put '</answer>';
%End;
%else %Do;
put '<answer>';
put '<value>' ID_01 +(-1) '</value>';
put '</answer>';
%end;

may be this:

if missing(ID_01) then Do;
   put '<answer>';
   put '<value/>';
   put '</answer>';
End;
else Do;
   put '<answer>';
   ID_01=ID_01+1;
   put '<value>' ID_01'</value>';
   put '</answer>';
end;

[Kurt_Bremser]

%if %superq(ID_01) ='' %then %Do;

This condition will always be false, as the text ID_01 is always non equal to an empty string. Keep in mind that macro is a preprocessor that works on code long before that  code is executed; therefore, macro statements will never have access to the content of data step variables.