Count numbers

Question

Hi,
i need to count the number 'Adult' and 'Child' in this query handling with case statement.
could anyone help me.
select ppf.employee_number
,ppf.full_name emp_name
,papf.full_name dependent_name
,hrl.meaning
,case when trunc (months_between (to_date(pac.segment10,'YYYY/MM/DD HH24:MI:SS'),papf.date_of_birth)/ 12) > 12 then 'Adult'
when trunc (months_between (to_date(pac.segment10,'YYYY/MM/DD HH24:MI:SS'),papf.date_of_birth)/ 12) <= 12 then 'Child'
end as Adult_Child
,papf.date_of_birth dependents_dob
,ppa.date_from ticket_start_date
,ppa.date_to ticket_end_date
,trunc (months_between (ppf.effective_start_date,papf.date_of_birth)/ 12) age
,to_date(pac.segment10,'yyyy/mm/dd hh24:mi:ss') Date_of_Issue
,pac.segment14 Ticket_Value
,pac.segment8 No_Of_Adults
,pac.segment9 No_Of_Childs
,case when pac.segment16 = 'TK' then 'Ticket'
when pac.segment16 = 'EN' then 'Cash'
end as Ticket
,pcr.contact_person_id
from per_people_f ppf, per_person_analyses ppa, per_analysis_criteria pac, per_contact_relationships pcr
,per_all_people_f papf, per_special_info_types_v pst, hr_lookups hrl
where ppf.person_id = ppa.person_id
and ppa.analysis_criteria_id = pac.analysis_criteria_id
and ppf.person_id = pcr.person_id
and pcr.contact_person_id = papf.person_id
and hrl.lookup_code = pcr.contact_type
and hrl.lookup_type = 'CONTACT'
and trunc(sysdate) between ppf.effective_start_date and ppf.effective_end_date
and ppa.id_flex_num = pst.id_flex_num
and pst.enabled_flag = 'Y'
and ppf.employee_number = :p_emp_number
and ppa.date_from >= nvl('01-jan-2006', to_date('01-jan-1900','dd-mon-yyyy'))
and ppa.date_to <= nvl('31-aug-2009',to_date('31-dec-4712','dd-mon-yyyy'))
order by to_number(ppf.employee_number)
thanks in Advance
Mohammed Khaleel

Answer 1

SELECT SUM (DECODE (adult_child, 'Adult', 1, 0)) adult_count, SUM (DECODE (adult_child, 'Child', 1, 0)) child_count
FROM (SELECT ppf.employee_number,
            ppf.full_name emp_name,
            papf.full_name dependent_name,
            hrl.meaning,
            CASE
               WHEN TRUNC(MONTHS_BETWEEN (TO_DATE (pac.segment10, 'YYYY/MM/DD HH24:MI:SS'), papf.date_of_birth) / 12) > 12 THEN 'Adult'
               WHEN TRUNC (MONTHS_BETWEEN (TO_DATE (pac.segment10, 'YYYY/MM/DD HH24:MI:SS'), papf.date_of_birth) / 12) <= 12 THEN 'Child'
            END
               AS adult_child,
            papf.date_of_birth dependents_dob,
            ppa.date_from ticket_start_date,
            ppa.date_to ticket_end_date,
            TRUNC (MONTHS_BETWEEN (ppf.effective_start_date, papf.date_of_birth) / 12) age,
            TO_DATE (pac.segment10, 'yyyy/mm/dd hh24:mi:ss') date_of_issue,
            pac.segment14 ticket_value,
            pac.segment8 no_of_adults,
            pac.segment9 no_of_childs,
            CASE
               WHEN pac.segment16 = 'TK' THEN 'Ticket'
               WHEN pac.segment16 = 'EN' THEN 'Cash'
            END
               AS ticket,
            pcr.contact_person_id
      FROM per_people_f ppf,
           per_person_analyses ppa,
           per_analysis_criteria pac,
           per_contact_relationships pcr,
           per_all_people_f papf,
           per_special_info_types_v pst,
           hr_lookups hrl
      WHERE ppf.person_id = ppa.person_id
            AND ppa.analysis_criteria_id = pac.analysis_criteria_id
            AND ppf.person_id = pcr.person_id
            AND pcr.contact_person_id = papf.person_id
            AND hrl.lookup_code = pcr.contact_type
            AND hrl.lookup_type = 'CONTACT'
            AND TRUNC (SYSDATE) BETWEEN ppf.effective_start_date AND ppf.effective_end_date
            AND ppa.id_flex_num = pst.id_flex_num
            AND pst.enabled_flag = 'Y'
            AND ppf.employee_number = :p_emp_number
            AND ppa.date_from >= NVL ('01-jan-2006', TO_DATE ('01-jan-1900', 'dd-mon-yyyy'))
            AND ppa.date_to <= NVL ('31-aug-2009', TO_DATE ('31-dec-4712', 'dd-mon-yyyy'))
      ORDER BY TO_NUMBER (ppf.employee_number))Regards,
Mahesh Kaila