I have to create two reports. The first report is a detailed report. And the second one is a summarized report. How to create these two reports, without running the query twice.
You can call the OpenDocument function (see here for some details) to pass values from the source report (as prompt inputs) to a target report, you still will not be able to share data (the way you envision). Steve’s suggestion might be the best one.
What I believe Drill through option is not available in BO. The best way to deal with this problem is to create tabs in the same report as suggected by Steave.