Discoverer Viewer and Reports

Question

I have some questions about ORA 10g Discov Plus and Reports.
1. Is it possible to define page items as parameters and use them for an dynamic link? Could it be that the dynamic link parameters are limited to parameters based on columns or rows?
2. If i define every level of an hierarchy as parameter and use them in an dynamic link, how can i avoid the following situation:
Report X contain a hierarchy like Region->Country->Town
I have a dynamic link containing these hierarchies as parameters.
If i use the link at region level and did not drill down to country or town then the parameters country and town are filled with the line name and i get no data. If i refresh and delete the line name for these parameters the records appear in the worksheet. How can i get these parameters to be empty, if i don't drill to them.
3. Reports doesn't recognize the links as it should. If i do not change the report, the links work ok. It opens the second worksheet with the data. If i change a page item or drill to another hierarchy level i get an fatal error (no special code, only fatal error occured, please contact your admin). If i drill down and up again i get the error to. The link only work if i doesn't changed anything.
Anybody got some ideas about these questions?
Message was edited by:
user534004
Message was edited by:
user534004

Answer 1

Hi Rod,
I got it, and had captured the LOGIN_USER.
Now the problem is:
I am using a table SECURITY_ACCESS_MV_D to apply security to a user.
I am using the below query in customer folder as:
select a.emp_id,a.empname,a.salary,a.mgr_id
from emp
where salary is not null
and (emp_id,mgr_id) in ( select distinct emp_id,mgr_id from SECURITY_ACCESS_MV_D where login_user ='HIM'
I am using IN because I have many other column in SECURITY_ACCESS_MV_D, not used in above query which will create Cartesian join if I exclude them in the main query, if I use the simple join in the query.
Now problem is how can I use the LOGIN_USER item (it will come when the certain user will login) in place of 'HIM' ( hard coded value). I want this filter (as mandatory) in the Discoverer Administrator EUL so that it is independent to the user reports.
I can’t find using type of parameters there as in reports we do.
Hope you got it.
Once again this article will greatly help everybody in security while implementing the OD solution.
Thanks,
Himanshu Tiwari