Databases Reference
In-Depth Information
Asserted Versioning Temporal Extent State Transformations
Create
Erase
Modify
Merge
Split
Lengthen
Shorten
Shorten
Backwards
Lengthen
Backwards
Lengthen
Forwards
Shorten
Forwards
Temporal Insert Transaction
Temporal Delete Transaction
Figure 10.21 A Taxonomy of Asserted Versioning Temporal Extent
Transformations.
side of the diagram can be brought about by means of a temporal
delete transaction. Again, each of those transformations was
explicitly mentioned in the previous section.
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 the two
taxonomies referenced in this chapter are included in this list.
In general, we leave taxonomy nodes out of these lists since they
are long enough without them.
12/31/9999
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until further notice
Allen relationships
