Dataxi is a collection of tools for developing form-based information systems. Dataxi enables one to quickly build an application based on forms with which the user can access the underlying database in order to query, read, edit and write. Dataxi is the link between the user interface and the database.
LocalSQL is a local SQL database engine. It is based on the Qt library (for cross-platform tools and GUI support) and the XBase library (for database access).
pgdiff compares the structures of two PostgreSQL databases and returns the differences as a sequence of SQL commands which can be fed to psql to transform the structure of the first to be identical to the second (analagous to diff and patch)
MySQL_CBN checks periodically the tables of a MySQL Server. Using the BACKUP, CHECK, OPTIMIZE and ANALYZE, and checks if everything is ok and alert you if anything is wrong.