Query run in Sql prompt correctly but give error in APEX report ORA-01843

Question

Hi. all APEX user
Last week I upgrade APEX 3.2 to 4.0.2 . Now i have a problem. PL/SQL reports which are working in APEX 3.2 not working in 4.0.2. Help me.....
I am working on a mission critical application we have to upgrade there next month.
Query code is :-
select * from (
Select pp.PAYMENT_DATE,pp.PATIENT_ID,p.name as name,pa.Service_Subtype,pp.PAYMENT_RECEIPT_ID,pa.Ward_Type,(pp.TOTAL_CHARGE-pp.discount) as amount ,pa.Service_Booked_By,pp.PAYMENT_COLLECTOR,
case when pp.discount=0 then 1
when pp.TOTAL_CHARGE = pp.discount then 3
else 2
end payment_status
from patients p,PATIENT_Payment pp,PATIENT_account pa where p.patient_id = pp.patient_id and pp.patient_id=pa.patient_id and pa.SERVICE_SUBTYPE=pp.SERVICE_SUBTYPE AND pp.SERVICE_REGISTRATION_ID=pa.SERVICE_REGISTRATION_ID and
(pp.PAYMENT_DATE>=to_date(:P15_date_from,'dd-mon-rr')) AND
(pp.PAYMENT_DATE<=to_date(:P15_date_to,'dd-mon-rr'))AND
(pa.GROUP_NAME=:p15_Group or :p15_Group='ALL') AND
(pp.service_type=:p15_Service_Type or :p15_Service_Type='ALL') AND
(pp.SERVICE_SUBTYPE=:p15_SERVICE_SUBTYPE or :p15_SERVICE_SUBTYPE='ALL') AND
(pa.WARD_TYPE=:p15_Ward or :p15_Ward='ALL') AND
(pp.PAYMENT_COLLECTOR=:p15_Collector or :p15_Collector='ALL')
)order by pp.PAYMENT_DATE
) where payment_status=:p15_status
order by 1

Answer 1

In your query, you expect the date to have the format 'dd-mon-rr'. Have you checked if the format of the date-items is of this format?