Re: Last 12 Months Rolling

Question

Dear All,
I am using OBIEE 11g, Can any one help me pls..
i have two prompts like Year and Monthname..
For example: User selects 2013 June
report has to display last 12 months from selected month, that i achieved using supporter report. (ref:: Last N months(Rolling months) data By year-month prompt in OBIEE | OBIEE by Shiva Molabanti)
But here i have to allow user to select multiple months from the prompt.
if user selects 2013 April,May,June here i need to take the maximum month in our case it is June.
From june to last 12 months i need to display..
how can i do this..give me an idea pls
Regards,
Bhargav 

Answer 1

Hi Bhar,
You are correct in your use of a "supporter report" You just have to use 2 columns in the supporter report.
Structure your supporter report in this way:
2 columns:
Col1 = Max(Month)
Col2 = Timestampadd(SQL_TSI_MONTH, -11, MAX(MONTH))
Filter: Month = user prompted month(s)
year = User prompted year
Then in your final report, your filter is based on both column #1 of your supporter report, AND column #2 of your supporter report like so:
Month <= Col1 of supporter report
AND
Month > Col2 of supporter report.
Understand that this logic wont not work if the user selects wildly different months. ( 3 months from different decades )
have fun, please mark as helpful if this gets you on the right track. Otherwise post and I will try to clarify.