|(database)||ADABAS - A relational database system by Software AG.
While it was initially designed for large IBM mainframe
systems (e.g. S/370 in the late 1970s), it has been ported
to numerous other platforms over the last few years such as
several flavors of Unix including AIX.|
ADABAS stores its data in tables (and is thus "relational") but also uses some non-relational techniques, such as multiple values and periodic groups.