View self-maintenance refers to maintaining materialized views without accessing base data. Self-mainenance is particularly useful in data warehousing settings, where base data comes fro msources that may be inaccessible. Self-maintenance has been studied for non-temporal views, but is even more important when a warehouse stores temporal views over the history of source data, since the source history needed to perform view maintenance may no longer exist. This paper tackles the self-maintenance problem for temporal views. We show how to derive auxiliary data to be stored at the warehouse so that the warehouse views and auxiliary data can be maintained without accessing the sources.
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