Databases Reference
In-Depth Information
2007: Time and Time Again
This series of some two dozen articles by the authors,
succeeded by a bi-monthly column of the same name and about
the same number of installments, began in the May 2007 issue of
DM Review magazine, now Information Management. The entire
set, amounting to some 50 articles and columns combined,
ended in June of 2009. Although we had designed and built
bi-temporal databases prior to writing these articles, our ideas
evolved a great deal in the process of writing them. For example,
although we emphasized the importance of maintenance encap-
sulation in the first article, we did not distinguish between
temporal and physical transactions. All in all, we do not believe
that these articles can usefully be consulted to gain additional
insight into the topics discussed in this topic. Although we
intended them as instructions to other modelers and developers
on how to implement bi-temporal data in today's DBMSs, we
now look back on them as an on-line diary of our evolving ideas
on the subject.
2009: Oracle 11g Workspace Manager
Oracle Database 11g Workspace Manager Overview. An
Oracle White Paper (September 2009).
http://www.oracle.com/
A discussion of the Oracle 11g Workspace Manager, and in
particular its key role in implementing Oracle's support for
bi-temporal data management. On our website, we compare and
contrast this implementation of a framework for bi-temporal
data management with Asserted Versioning.
Philosophical Concepts
The best Internet source for an introduction to philosophical
concepts, including those used in this topic, is the Stanford
Encyclopedia of Philosophy, at
http://plato.stanford.edu/
.
Unfortunately, while each entry is individually excellent, the
choice of which concepts to include seems somewhat idiosyn-
cratic. For example, there is no general entry for ontology.
Nonetheless, we recommend the following entries there, as rele-
vant to the concepts used in this topic: assertion, change,
epistemology, facts, Arthur Prior, propositional attitude reports,
speech acts, temporal logic, temporal parts.
