А что, Гугль уже не ищет ?

U2 product family (UniVerse/UniData)
Highlights
UniData
IBM UniData is an extended-relational, SQL-compliant database that supports
repeating groups, hierarchies and arrays. UniData offers both best-of-breed
native interfaces with ActiveX, Java and C interfaces, as well as industry-standard
interfaces such as JDBC, ODBC, OLE DB and HTTP.
IBM intends to offer enhancements and support UniData customers and business
partners for as long as they require. More details are included in this section below.
UniData 6.0, released in the second half of 2002, includes enhancements to
openness, security, robustness and scalability. This release provides a native
JDBC driver as well as support for XML input and output from the database
engine. Security improvements come from the added support of SSL for the
HTTP and socket interfaces as well as the telnet and UniObjects for Java
protocols. UniData 6.0 includes realtime replication functionality as part of
the core database feature set. Integrated native support for WebSphere MQ is
also included in this release.
Enhancements under consideration for UniData beyond release 6 include
enhancements to XML, support for a SOAP client API, and an open driver
framework to allow external database storage options.