http://patricklogan.blogspot.com/archives/2003_10_05_patricklogan_archive.html#106520442014053453
# One is Gemstone Smalltalk's OODB "select blocks" (PDF) which use a
notation similar to Smalltalk blocks, but actually implements a
declarative query language with structural access to graphs of
collections of objects. Although it was very useful, the feature was
never developed nearly as much as it could have been.
http://www.macqueen.us/smalltalkReport/ST/91_95/SMAL0408.PDF
# The other is Symbolics' Statice OODB. Being based on Lisp, the
syntax is much richer and fits more seamlessly into the host
language. Unfortunately the Lisp market was already heading for the
doldrums, and so a lot of the experience from Statice went into the
C++ OODB rather than into Lisp. But apparently Statice is still
available.
http://kogs-www.informatik.uni-hamburg.de/~moeller/symbolics-info/statice.html
--
__Pascal_Bourguignon__
http://www.informatimago.com/