Connect by mistake of loop

Hi friends,

When I tried to run my application im below get error like
ORA-01436: CONNECT LOOP IN the USER DATA
This is my request
select  distinct papf.person_id, papf.full_name "Employee Name", supf.full_name "Manager Name", paaf.supervisor_id, level
from per_all_people_f papf, per_all_people_f supf, per_all_assignments_f paaf
where papf.person_id = paaf.person_id and nvl(paaf.supervisor_id, papf.person_id) =  supf.person_id and
trunc(sysdate) between paaf.effective_start_date and PAAF.effective_end_date and
trunc(sysdate) between papf.effective_start_date and PApF.effective_end_date
start with paaf.supervisor_id is null
connect by prior papf.person_id =  PAAF.supervisor_id
order by papf.person_id
If I was wrong, could understand the cause.

Thank you

Kind regards
Vel

For performance reasons, you must use

connect prior ADP.person_id = PAAF.supervisor_id

not

connect prior women's wear.person_id = PAAF.supervisor_id

But the reason to connect loop entered into force ADP check is in the wrong place. To be part of the beginning with and connect to. Also, if you check the date of entry into women's WEAR, you should also check SUPF entry date. And then you wouldn't need SEPARATE

Try:

select  papf.person_id,
        papf.full_name "Employee Name",
        supf.full_name "Manager Name",
        paaf.supervisor_id,
        level
  from  per_all_people_f papf,
        per_all_people_f supf,
        per_all_assignments_f paaf
  where paaf.person_id = papf.person_id
    and nvl(paaf.supervisor_id, paaf.person_id) = supf.person_id
    and trunc(sysdate) between papf.effective_start_date and papf.effective_end_date
    and trunc(sysdate) between supf.effective_start_date and supf.effective_end_date
  start with paaf.supervisor_id is null
    and trunc(sysdate) between paaf.effective_start_date and paaf.effective_end_date
  connect by paaf.supervisor_id = prior paaf.person_id
      and trunc(sysdate) between paaf.effective_start_date and paaf.effective_end_date
  order by papf.person_id
/

SY.

Tags: Database

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