August 2010
Intermediate to advanced
512 pages
13h 53m
English
Content preview from Managing Time in Relational DatabasesBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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9. An Introduction to Temporal Transactions
Contents
Effective Time Within Assertion Time192
Explicitly Temporal Transactions: The Mental Model195
A Taxonomy of Temporal Extent State Transformations197
Glossary References211
Temporal transactions are inserts, updates or deletes whose targets are asserted version tables. But temporal transactions are not submitted directly to the DBMS. The work that has to be done to manage conventional tables is straightforward enough that we can let users directly manipulate those tables. But bi-temporal tables, including asserted version tables, are too complex to ...
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