When you build a project, PSoC Creator will generate a report. To access it, go in the Workspace Explorer in the PSoC Creator (on the left side). There are some tabs on the vertical line. Pick the "Results" tab. Open the *.RPT file. It shows how the UDBs are being used.
Alternatively, you can go to View > Resource Meter. One of the items is related to the UDBs.
