User Help > Viewing Item Data in Reports > Reporting on Items Using Item Reports
  
Reporting on Items Using Item Reports
You can run the following item reports:
Report on a specified item or set of items, thus overriding the query specified in the report definition.
Report on a specified item or set of items as of a date in the past (historical report).
Report that compares the results of two reports from different time periods using a specified item or set of items (compare to base time report). See your administrator for more information.
Running a Report on Selected Items
Running a Historical or Differences Report