HDL – Query to generate worker email in HDL format

select 'METADATA|PersonEmail|EmailAddressId|PersonId|DateFrom|EmailType|PrimaryFlag|EmailAddress|SourceSystemId|SourceSystemOwner'
  from dual
UNION ALL
select 'MERGE|PersonEmail' 						||'|'||												
       NULL 									||'|'||										
       papf.person_id							||'|'||								
       to_char(ppos.date_start,'RRRR/MM/DD')	||'|'||					    
       'W1' 									||'|'||				
	   'Y'													||'|'||		
       'sendmail-discard_'||papf.person_number||'@xyz.com' 	||'|'||
      'PER_EMAIL_'||papf.person_number						||'|'||
      'HRC_SQLLOADER' 												
  from per_all_people_f papf
      ,per_periods_of_service ppos
 where 1=1
   and trunc(sysdate) between papf.effective_start_date and papf.effective_end_date
   and papf.person_id = ppos.person_id
   and ppos.date_start = (select MAX(ppos2.date_start) from per_periods_of_service ppos2
                           where ppos2.person_id = ppos.person_id)

Sample HDL File:

METADATA|PersonEmail|EmailAddressId|PersonId|DateFrom|EmailType|PrimaryFlag|EmailAddress|SourceSystemId|SourceSystemOwner
MERGE|PersonEmail||100000015400564|2021/03/15|W1|Y|[email protected]|PER_EMAIL_00603|HRC_SQLLOADER