Xmldego provides XML parsing and/or transformation by binding callbacks to XML parsing events in the context of an XML element. While SAX, for example, calls your callbacks on every start tag, Xmldego will do so only for the child axis path you request. Xmldego is particularly useful when only smaller bits of a much larger XML file need to be processed, because only interest in the relevant bits need to be coded. In contrast to a DOM parser, much larger XML files can be processed, because the whole file is not loaded into memory.
mysqlviz renders a graphical representation of a MySQL database from a mysqldump file. Features include speed, the ability to infer foreign key relationships if you do not have them defined, and handling of partial dumps (i.e. foreign keys to tables that are not defined within the dump).