REALdb Tools gives you the ability to manipulate REAL database files
in ways that the built in engine does not provide at this time. With
REALdb Tools you can:

* Compact a database to make it smaller after records have been deleted.
* Drop any table or column from a REAL database.
* Change table names.
* Change column names and data types.
* Add new tables and columns.

(http://www.realsoftware.com/realbasic/prerelease/REALdbTools.html)