I have a business unit client who needs to produce 5 reports each month for each of 120 users (total 600 individual report instances). The user is a parameter to the reports, and each user can see only his data, or that in levels below him in the hierarchy. Because each report's data is organized in a hierarchical fashion, the roll-up/drill-down interactive functionality that you get with the SSRS report viewer is critical. My business unit client has set up a data driven subscription to generate the reports, but the DDS puts out the individual reports to an Excel file on a network file share, so we lose the roll-up/drill-down functionality. If each user runs his 5 reports interactively, 1) each report takes about 5 - 10 minutes to gather its data and render, so the performance is unacceptable; and 2) how can we limit each user to running each report for only HIS data? Is there any way we can use a data-driven subscription to produce snapshots of each report on a scheduled basis, so that each user can then just pull up the most recent snapshot of HIS reports in the SSRS report viewer, so that he still has roll-up/drill-down?
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