Between-Filter on Column using calculated presentation-variable values

Question

Hello everyone,
i'd like to know whether it is possible to filter a column with a Between-Statement using two calculations done on a single presentation variable in Oracle BI Answers
What i have:
- OBIEE 10g
A line-chart, which shows earnings over a period of several years: In 1999 it might be 100.000€, in 2000 it might be 80.000€,..., in 2009 it might be 95.000€ and so on.
What i want:
Now i'd like to create a dashboard prompt to be able to choose a certain year, for example 2006.
The chart then should show data for the year given (2006...) and two years before(2004, 2005) and two years after the chosen year(2007,2008).
Example:
If 2006 is chosen, then data from 2004 to 2008 should be shown in the chart
If 2000 is chosen, then data from 1998 to 2002 should be shown in the chart.
What i did:
- I created the Prompt, set its presentation variable to var_year.
- I then created a filter on my years-column, choosing "Between" from the DropDown-List.
- I added two 'Variable-fields within the filter-dialogue', each filled with var_year and a default value.
- I tried to add a +2 or -2 to the variable-expression field, but (ofcourse) got an error.
Thanks in Advance and greetings from Germany,
Chris
Edited by: user12288481 on 04.08.2010 13:18

Answer 1

Sorry for not answering to your Posts yesterday.
I have to admit that i was unable to solve my problem, although the solutions posted, seemed to be quite promising.
Hammett81's solution
First, I gave Hammett81's solution a try and created a filter group using the 'Add filter' option/dialogue box.
This Filtergroup consists of 5 single filter expressions, which have been connected by ORs:
The way i created those filters:
In the 'Create/ Edit Filter' i've chosen 'is equal/ is in' - Operator.
Then i was given the chance to add a 'value' or to add 'Variable --> Presentation', which summons 2 textboxes (Variable Expression and Default)
Everything i put into the variable expression field will be put into the @{} bracket by OBIEE, after clicking ok.
So it is not possible to use +1, +2, -1,-2 etc. within this field, as this would lead to @{var_year +2} for example, which ofcourse does not match the presentation variable's name.
On the other hand, if i do not use a Variable Expression but a "Value field", then i can write @{var_year} +2 for example.
In my opinion, obiee wants to use the expression as a simple value though, rather than use it as a variable and therefore won't check the presentation variables value, when it tries to filter the data.
John's solution
Regarding Johns answer, i am not sure where to put the filter expression. Should this be added into the SQL-Query (Advanced-Tab) or do i have to add it within the columns formula? (fx)
Edited by: Chris2010 on 05.08.2010 09:36