How does a Date Parameter get interpreted using an Oracle Query

Question

I have a SSRS Report which utilizes an Oracle Data Source and the following query...
select TRIM(to_char(TO_DATE(:mydate),'Month')) || ' ' || TRIM(to_char(TO_DATE(:mydate),'YYYY')) as compare_month,
cs.contract_nbr,
m.hcfa_nbr,
m.fname,
m.lname,
cs.group_nbr,
cs.division_nbr,
to_char(to_date(cs.ymdeff,'yyyymmdd'),'mm/dd/yyyy') as date_eff,
to_char(to_date(cs.ymdend,'yyyymmdd'),'mm/dd/yyyy') as date_end,
ssw.num_months,
ssw.ssa_premium_collected,
ssw.ssa_penalty_collected
from amiown.contract_span cs
left join (select distinct
m.member_nbr,
m.contract_nbr,
trim(m.firstname) as fname,
trim(m.lastname) as lname,
m.hcfa_nbr
from amiown.member m
inner join amiown.member_span ms
on ms.member_nbr = m.member_nbr
and trunc(to_date(:mydate),'Month') <= to_date(ms.ymdend,'yyyymmdd') -- beginning of month is <= than end of span
and add_months(trunc(to_date(:mydate),'Month'),1)-1 >= to_date(ms.ymdeff,'yyyymmdd') -- end of month is >= than beginning of span
and ms.void = ' '
and ms.class_x = 'CH' -- contract-holders only
) m
on cs.contract_nbr = m.contract_nbr
left join (select hno.member_id,
substr(hno.member_id,1,9) as contract_nbr,
pw.hic_number,
pw.report_date,
pw.start_date,
pw.end_date,
pw.num_months,
pw.part_c_collected + pw.part_d_collected as ssa_premium_collected,
pw.penalty_collected as ssa_penalty_collected
from SC_BASE.hcfa_arch_premiumwithhold pw
left join SC_BASE.hcfa_name_org hno
on pw.name_id = hno.name_id
where pw.report_date between pw.start_date
and pw.end_date -- filter out adjustments
and trunc(to_date(:mydate),'Month') <= pw.end_date -- beginning of month is <= than end of span
and add_months(trunc(to_date(:mydate),'Month'),1)-1 >= pw.start_date -- end of month is >= than beginning of span
order by substr(hno.member_id,1,9)
) ssw
on trim(cs.contract_nbr) = trim(ssw.contract_nbr)
where cs.division_nbr like '%SSW%'
and cs.void <> 'V'
and trunc(to_date(:mydate),'Month') <= to_date(cs.ymdend,'yyyymmdd') -- beginning of month is <= than end of span
and add_months(trunc(to_date(:mydate),'Month'),1)-1 >= to_date(cs.ymdeff,'yyyymmdd') -- end of month is >= than beginning of span
The :mydate parameter is defined in the .rdl with a Data type: of Date/Time
I am trying to trouble shoot this by using a Linked Server to Oracle and even going against Oracle itself...providing the following syntax because I believe this is what's being sent over via SSRS...
WHERE   TRUNC(TO_DATE(11/30/2014 00:00:00), 'Month')        <=      HCFA_ARCH_PREMIUMWITHHOLD.END_DATE
However, every time I try this, I get an Oracle error...ORA-01843: not a valid month
Can anyone help me out in the data transformation from SSRS to Oracle and the syntax that actually gets passed over so that I can try and troubleshoot this?
Thanks for your review and am hopeful for a reply.

Answer 1

Hi ITBobbyp,
Please add the myDate field in the report to check if the myDate have the format like:'MM/DD/YYYY hh:mm:ss AM' or 'MM/DD/YYYY hh:mm:ss PM', If so, your issue can be caused by the format of the :mydate  parameter which is like 'MM/DD/YYYY hh:mm:ss AM'
or 'MM/DD/YYYY hh:mm:ss PM' in the report ,so it have extra ' AM' or ' PM' compare with that in the TRUNC(TO_DATE('11/30/2014 00:00:00'), 'Month').
You can get the format wanted 'MM/DD/YYYY hh:mm:ss' from 'MM/DD/YYYY hh:mm:ss AM' as below:
You can create an new calculated field to get the new date by using expression as below and then create the parameter based on this calculated field:
=Fields!DateTime.Value.ToString().Replace(" AM","").Replace(" PM","")
You can also hide the :myDate parameter and then create an new parameter(NewMyDate) based on the :myDate
parameter which will have the format like 'MM/DD/YYYY hh:mm:ss':
Specify the available value and default value using below expression:
=Parameters!myDate.Value.ToString().Replace(" AM","").Replace(" PM","")
Then you can use the @NewMyDate to add in the query to filter the data.
If you still have any problem, please feel free to ask.
Regards
Vicky Liu
Vicky Liu
TechNet Community Support