can parameters using hierarchies
You can use Reporting Services aggregate functions that accept the parameter Recursive to calculate summary data for a recursive hierarchy. The following functions accept Recursive as a parameter: Sum, Avg, Count, CountDistinct, CountRows, Max, Min, StDev, StDevP, Sum, Var, and VarP.isplaying hierarchical data is a common use for recursive hierarchy groups, for example, employees in an organizational chart. The dataset includes a list of employees and the managers, where the manager names also appear in the list of employees.