How to assign a default value when there is no prompted value

Question

Dear all,
I create a filter and it's value is relate to a prompt.If the prompt is not fill I found that all record is selected.
How did I assign a default value so that when I didn't fill some value in to the prompt and still can get the result by
the default value I set?
Thanks a lot!

Answer 1

Are you using dates for between or some character column?
Post your example.
Instead of between use to is equal prompts, so u will have then 2 fields one for date from a nd one for date to. Everything is the same as I wrote just repeat steps...
You must put 2 separate fields if you are using date between and you want to have default variable for both.
Column formula for the first calendar date prompt:
case when 1=2 then TIMES.TIME_ID else cast ('1.1.1900' as date) end
and for the second:
case when 1=2 then TIMES.TIME_ID else cast ('1.1.2900' as date) end
Now you set up default repository variable for both prompts.
Presentation variable you put in the set presentation variable on each prompt:
p_date_from
p_date_to
And in Answers filter will be like this:
*TIMES.TIME_ID between @{p_date_from}{VALUEOF("rv_test_date_to_char")} and @{p_date_to}{VALUEOF("rv_test_date_to_char")}*
or you can put a different default variables
*TIMES.TIME_ID between @{p_date_from}{VALUEOF("rv_test_date_to_char_from")} and @{p_date_to}{VALUEOF("rv_test_date_to_char_to")}*
I posted similar in my blog:
Date between in filter and title when using presentation variable from calendar dashboard prompt or drop-down list in OBIEE
http://108obiee.blogspot.com/2009/03/date-between-in-filter-and-title-when.html
Regards,
Goran O
http://108obiee.blogspot.com
Edited by: Goran O on 2009.04.23 03:37