Sirix is a versioned tree-based storage system. It provides Snapshot Isolation through MVCC and is best suited for flash-based storage. The tree encoding is suited for heavy update operations. It provides diffing algorithms either to import diffs between currently shredded (imported) XML documents to update a tree structure or to get the differences between versions of a tree structure. A GUI provides several visualizations for comparing imported tree structures.
univis2typo3 is a tool to import data from UnivIS into a TYPO3 Web site. This lets you create a Web site for a university department with a few clicks. It automaticaly imports information about people, lectures, projects, publications, and other department information. It has a user-friendly interface to create and edit personal and course Web pages. It can automatically backup and update the data. The Web site will remain available even if the UnivIS server becomes unavailable.
Chief Database records time series data in real time. Data is compressed to reduce disk requirements and improve performance. Redo logging and caching provide high performance on minimal hardware, with minimal data loss in the event of hardware failure. 1 million coordinates can be processed per second on server-level hardware. All interfaces are SOAP; allowing for easy integration with other systems and Web sites. Data is usually from a telemetered resource, but can also come from SNMP. Chief Trends allows for trending data inside Firefox. Chief Calculator is a Perl calculation engine to manipulate the data in whatever way you want.
Extended MySQLi implements a MySQL database access wrapper using the MySQLi extension. It is based on the Reduced MySQLi class originally written by Mertol Kasanan. This version can account the memory usage and log the executed queries in the current page. It can also cache the query results in an XML file.
XML::RDB is a Perl extension to convert XML files into RDB schemas and populate/unpopulate them. It works with XML schemas too. It analyzes relationships within either an XML file or an XML schema to create RDB tables to hold that document (or any XML document that conforms to the XML schema). It takes an XML file or URL as input for the XML::DOM::Parser, and extracts information to build and write DDL. An attempt is made to recognize relations within the XML structure then translate it to the DDL. That generated DDL is then loaded, parsing the DOM tree a second time to extract and load the data. At the bottom of the DDL are select statements to help get a view of those relations found, and XML data. xml_rdb also dumps the data back to XML format.
BaseX is a light-weight, high-performance, and scalable XML database system and XPath/XQuery processor, including full support for the W3C Update and Full Text extensions. An interactive and user-friendly GUI frontend gives you great insight into large XML data instances. It is platform independent and works out of the box.
TM++ is an embedded, portable, persistent Topic Maps engine. It is designed to work according to the ISO standards for TMDM 1.0 and XTM 1.0/2.0 on Windows and most POSIX-compliant operating systems like Unix and Linux. It has interfaces for C++, ALLEGROCL, CHICKEN, CLISP, CFFI, C#, Guile, Java, Lua, Modula 3, Mzscheme, Ocaml, Octave, Perl, PHP4, PHP5, Pike, Python, R (aka GNU S), Ruby, Lisp S-Expressions, Tcl, Common Lisp/UFFI, and XML.
With MetaModel, you use a type-safe SQL-like API for querying any datastore. It is a data access framework providing a common interface for exploration and querying of different types of datastores. It isn't a data mapping framework. Instead, it emphasizes abstraction of metadata and the ability to add data sources at runtime, making MetaModel great for generic data processing applications, but less so for applications modeled around a particular domain.