Date Format in calculations

Hi all,
we are currently upgrading our discoverer from version 3.1.25 to version 10.2.0.1.0.
we have an old report that had been created with the old version and saved on the computer (not in the database) with a date calculation on a date parameter as follows: <table_name>.<date_field> - :DATEPARAMETER (the date format of the two dates values is DD/MM/YYYY).
This calculation works fine on the old discoverer version when we run it, but when we try to run the report on the new discoverer desktop version (10.2.0.1.0) we get an error that the parameter is incorrect.
the thing is that if i convert the date format manually using the to_date function on the parameter, it works fine.
My question is what is the default date format for the calculations, and how can i set it myself?
i already added the NLS_DATE_FORMAT key in the registry under HKEY_LOCAL_MACHINE -> SOFTWARE -> ORACLE, but it doesn't work, it changes the date format of the date fields that are presented in the table after a report execution.
In addition, if we save the report to the database using the desktop version and try to run the report on discoverer plus, we get the same error and need to perform the same solution (convert the parameter manually with to_date).

mac-a-rooney wrote:
I am working with dates.
1st I want to calculate a time span for example calculate cell A2 - cell A1. In cell A1 it is written 01.01.2010 (so first of January) and in cell A2 01.02.2010 (so first of February). I wrote the dates in letters, too, to avoid misunderstandings due to different national date formats.
Since January has 31 days, the obvious result thereof is "31D". So far so good.
but now I want to multiply the 31 with a numeric value, but not the 31D, because if I do so, and let's say the numeric value is 3, then my result is 93 DAYS rather than just 93.
Are you sure you're asking in the right forum?
Using Numbers '08, with the following entries:
B2: Jan 1, 2010
C2: Feb 1,2010
D2: =C2-B2
E2: =3*D2
I get 31 (not 31D) in D2 and 93 (not 93 DAYS) in D2.
From your description, I think you're actually using Numbers '09, and Jerry's advice above applies.
Regards,
Barry

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Hi,
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CASE
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    THEN expression_1
END
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Hello,
I have a problem with date stored in presentation variable.
I have simple prompt with calendar field (default date value is setted from repository or session variable to current date). Selected date is stored in PP_DATE presentation variable.
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Screenshots are stored and described in this PDF: [PDF with screenshots|https://docs.google.com/uc?export=download&id=0B2LOPOBteIShMDRmYTJlYTItNmYyZC00ODdkLWE5NjktNzI1N2RlNWMwZjBk]
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Kishore Guggilla wrote:
Hey,
you are talking about so many pieces here seems..
first letz break down your issues list..
1. error, this is because of default date(using repository variable) used in prompt..
2. using presentation variables in timetampdiff functions..
3. showing variable in title list..
we'll go through each issue..
because, its' messed up..I think that everywhere is the same problem. So solving issue number 1 will solve my other problems.
"1. error, this is because of default date(using repository variable) used in prompt.. "
I want to use date prompt with default date value (from repository or session variable) and then use pp_date presentation variable from this prompt to filter my results.
I would like to use repos. or session variables, I dont want to write some select to fill default date value in each prompt.
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http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/datatype.htm#i1847
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Don't forget to award points *
Regards,
Abir
Don't forget to award Points *

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Hello,
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Hi,
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The result is shown as below:
Thanks,
Yumi Fu
Forum Support
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact
[email protected]

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Hello,
Check the table :
T247
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Date Format in calculations

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