Creating a feature dataset

You will create seven feature datasets: Buildings, GeodeticPoints, Hydrography, LandUse, Relief, Transportation, and Boundaries. In your file geodatabase, Topo5k.gdb, all feature datasets will have the same CRS.

Follow these steps to create feature datasets in a file geodatabase using the ArcCatalog context menu:

After you have created a feature dataset, ArcCatalog allows you to change only the XY and Z coordinate system. If you take the decision to change the XY coordinate system for a feature dataset, you should know that you cannot modify the values for domain, resolution and tolerance. If you still need to change the CRS for a feature dataset, it will be more proper to create the feature dataset from the beginning. In conclusion, when you are thinking about a feature dataset, think twice and act once.

In ArcCatalog, you can use Copy and Paste from the context menu in the file geodatabase to duplicate the first feature dataset. In the Data Transfer window, you can change the name of the feature dataset by typing in the Target Name section. In this case, the newly resulted feature dataset will have the same coordinate reference system as the source feature dataset.