http://opendbcopy.sourceforge.net/ This tool is designed for repetitive and
scripted DB load/unload for test setup, data migration etc. Looks like will
possibly work to migrate a WLP portal repository from test, qa, production.
Eclipse plug in (commercial, very low price): JFaceDB
http://www.pratocity.com/index.jsp
Squirrel SQL (http://squirrel-sql.sourceforge.net/).
http://www.manageability.org/blog/stuff/open-source-etl/view