The Remove Duplicate Notes tool removes multiple occurrences of the same DNC note to reduce the size of the geodatabase. Although the DNC product specification allows duplicated records in a theme's notes.rat table, the output Vector Product Format database must be made as compact as possible.
- Start ArcCatalog.
- On the main menu, click Customize > Extensions and verify that all applicable extensions are checked.
You need Production Mapping and Maritime Charting.
- On the main menu, click Customize > Toolbars > Nautical DNC.
- Click the geodatabase that contains the duplicate notes you want to remove.
- Click the Remove Duplicate Notes button on the Nautical DNC toolbar.
A progress bar appears and displays the operation's progress. The progress bar closes when the operation finishes.