Does BI Data Template allows calling of a package insite group element

Question

Hi
Is it possible to call a package inside the group element tag.
When i try to call a package outside the group element it works out, but when I try to call it inside the group element it doesnt return any result.
Am currently using BI Publisher version of 5.6.3 in Oracle Applications 12.1.3
Regards
Anoop

Answer 1

Thanks for your detailed answer!!
I am trying to call a package just to understand how it works .This package just inserts a row in "suppliers" table.I ma calling this package through 'beforeReprot' trigger and querying the table after that.
I have written a package "test_pack" :
create or replace
package test_pack as
function test_insert_fun return boolean;
end test_pack;
create or replace
package body test_pack as
function test_insert_fun return boolean is
begin
insert into suppliers values (1,'p1','p2');
return (TRUE);
end;
end test_pack;
Data Template :
<dataTemplate name="test" dataSourceRef="demo" defaultpackage="test_pack">
     <dataQuery>
          <sqlStatement name="Q1">
               <![CDATA[SELECT * from suppliers]]>
          </sqlStatement>
     </dataQuery>
     <dataTrigger name="beforeReport" source="test_pack.test_insert_fun()"/>
</dataTemplate>
However after this , when I try to view data , I amnot seeing any output.When i go nad check the suppliers table in db, i dont see any values.
I believe this package should be executed everytime i view the data.
Please advice!!