Query to pull Active, terminated and new hire

Question

Hi, I have the below query which is causing the issue
select employee_number ,to_char(creation_date,'DD-MON-YYYY') creation_date, person_id,object_version_number, person_type_id,
to_char(effective_start_date,'DD-MON-YYYY') emp_start_date, to_char(effective_end_date, 'DD-MON-YYYY') emp_end_date,
CASE WHEN trunc(sysdate) = trunc(creation_date) and sysdate between effective_start_date and effective_end_date then 'New Hire'
when sysdate between effective_start_date and effective_end_date then 'Active'
when trunc(sysdate)> trunc(effective_start_date) then 'Terminate'
end status
from per_all_people_f where employee_number like '%test%' and person_type_id=1120
--AND SYSDATE BETWEEN effective_start_date and effective_end_date
order by employee_number
The query returns the below data
employee_number creation_date person_id object_version_number, person_type_id, emp_start_date, emp_end_date, status
test_01     28-MAR-2013     2342     5     1120     27-MAR-2011     19-APR-2013     Terminate
test_02     29-MAR-2013     2345     7     1120     27-MAR-2011     31-DEC-4712     Active
test_03     29-MAR-2013     2346     12     1120     30-JUN-2011     31-DEC-4712     Active
test_03     29-MAR-2013     2346     9     1120     29-JUN-2011     29-JUN-2011     Terminate
test_03     29-MAR-2013     2346     7     1120     27-MAR-2011     28-JUN-2011     Terminate
test_05     19-APR-2013     2443     10     1120     27-MAR-2011     24-APR-2013     Terminate
test_07     24-APR-2013     2461     8     1120     27-MAR-2011     31-DEC-4712     New Hire
test_08     24-APR-2013     2462     4     1120     27-MAR-2011     24-APR-2013     Terminate
But I need in my output only the record with employee number test_03 only once because it is current object_version_number is 12
If I put the condition SYSDATE BETWEEN effective_start_date and effective_end_date it will not show me terminated records.
My output should look like
employee_number creation_date person_id object_version_number, person_type_id, emp_start_date, emp_end_date, status
test_01     28-MAR-2013     2342     5     1120     27-MAR-2011     19-APR-2013     Terminate
test_02     29-MAR-2013     2345     7     1120     27-MAR-2011     31-DEC-4712     Active
test_03     29-MAR-2013     2346     12     1120     30-JUN-2011     31-DEC-4712     Active
test_05     19-APR-2013     2443     10     1120     27-MAR-2011     24-APR-2013     Terminate
test_07     24-APR-2013     2461     8     1120     27-MAR-2011     31-DEC-4712     New Hire
test_08     24-APR-2013     2462     4     1120     27-MAR-2011     24-APR-2013     Terminate
Can some one help me what I am missing.
Thanks
Edited by: 885022 on Apr 24, 2013 3:33 AM

Answer 1

Hi,
It is always recommended that you fetch the Active employee details and ex-employee details in separate query and make a union of the two to give you the combined output. Thsi approach will ensure that you will only get one record for employee (an active record if S/He is an active employee or an ex-employee record). Try this out
Sample - select papf.employee_number, papf.full_name
from per_all_people_f papf,
per_person_type_usages_f pptu,
per_person_types ppt
where papf.person_id = pptu.person_id
and pptu.person_type_id = ppt.person_type_id
and ppt.system_person_type in ('EMP', 'CWK')
and trunc(sysdate) between papf.effective_start_date and papf.effective_end_date
and trunc(sysdate) between pptu.effective_start_date and pptu.effective_end_date
UNION
select papf.employee_number, papf.full_name
from per_all_people_f papf,
per_person_type_usages_f pptu,
per_person_types ppt
where papf.person_id = pptu.person_id
and pptu.person_type_id = ppt.person_type_id
and ppt.system_person_type in ('EX_EMP', 'EX_CWK')
and trunc(sysdate) between papf.effective_start_date and papf.effective_end_date
and trunc(sysdate) between pptu.effective_start_date and pptu.effective_end_date
Thanks,
Sanjay