Databases Reference
In-Depth Information
time earlier, unaffected part. Since the target timespan extended
to 12/31/9999, no later part of the episode lay outside that target
span, so nothing else was replaced. The transaction terminated a
current episode as of Now(). But in doing so, it went through
exactly the same steps that all temporal deletes go through.
Glossary References
Glossary entries whose definitions form strong inter-
dependencies are grouped together in the following list. The
same glossary entries may be grouped together in different ways
at the end of different chapters, each grouping reflecting the
semantic perspective of each chapter. There will usually be sev-
eral other, and often many other, glossary entries that are not
included in the list, and we recommend that the Glossary be
consulted whenever an unfamiliar term is encountered.
We note, in particular, that none of the nodes in our taxon-
omy of temporal extent transformations are included in this list.
In general, we leave taxonomy nodes out of these lists, but rec-
ommend that the reader look them up in the Glossary.
12/31/9999
Now()
asserted version table
Asserted Versioning Framework (AVF)
assertion
assertion begin date
assertion end date
assertion time
shared assertion time
statement
transaction time
version
bi-temporal
uni-temporal
business data
business key
reliable business key
unreliable business key
clock tick
