When you have time dependant hierarchies, you must ensure that the universe is updated correctly to avoid creating non-valid hierarchies. Depending on the type of time dependant hierarchy, you can experience the following issues when a universe is not updated correctly:
| Hierarchy Type | Result When Universe not Updated |
|---|---|
| Entirely time-dependent hierarchy | Hierarchy objects in the universe may be not valid. The universe must be updated to take into any modifications in the hierarchy or any newly created objects. |
| Time-dependent Hierarchy Structure | Instances of obsolete or missing objects may occur if the hierarchy structure changes, and the universe has not been updated with the changes. |
You can ensure that time dependant hierarchies in the universe are valid as follows:
· Manually add or delete objects that no longer correspond to hierarchies in the target cube.
· Create a dummy universe on the same cube with a new connection to get the updated objects, then update the SELECT of the original objects in the original universe with new definitions.
· Generate a new universe based in the updated target cube.
If
reports have already been created on the modified universe, ensure that
the reports are also updated with the changes. If not, users may run queries
on obsolete objects that return errors. Refer to the Designer's Guide
for information on creating and deleting objects in a universe.