Oracle (SQL) support for Temporal / time period based data

Beyond standard SQL (DATE type etc. and <,>, LEAST, GREATEST, etc.) does Oracle offer anything to help handle time period based data? E.g. overlapping periods, joins when gaps in time periods from 2+ tables, period contiguity checks, etc. I've developed various SQL query techniques, but they're all rather cumbersome using standard SQL.
Oracle Spatial offers geo-location support - is there anything similar for temporal query support?
Any good books / docs on the subject?

Check out Workspace manager for limited out of the box temporal support.
You may also want to have a read through this series of articles about temporal database systems. They aren't Oracle specific, but may help you with your temporal system design.

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Author:   [email protected]
Date:     2009-08-17 11:32:37 -0700 (Mon, 17 Aug 2009)
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Oracle (SQL) support for Temporal / time period based data

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