Proceedings of 16th International Conference on Data Engineering (Cat. No.00CB37073)
DOI: 10.1109/icde.2000.839395
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Abstract: The problemLarge database systems (e.g., federations, warehouses) have several virtual or physical databases, each derived from other layers. Today, metadata tend to be locked into the schema where it is supplied, and are rarely available through other schemas. Propagating metadata to other schemas is difficult for three reasons.First, syntactically similar metadata values can propagate very differently. For example, the access rights associated with a join view may be the intersection of the source access rig… Show more

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Cited by 2 publications
(2 citation statements)
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References 9 publications
(4 reference statements)
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“…A first class view involves considerably more knowledge, i.e., a derivation mapping for each kind of metadata or propagatable operation, on each attribute (or other database granule), upward and downward, through each query operator [Ros99c]. The approach is feasible only with extensive code reuse and automated generation.…”
Section: Implementing First-class Viewsmentioning
confidence: 99%
See 1 more Smart Citation
“…A first class view involves considerably more knowledge, i.e., a derivation mapping for each kind of metadata or propagatable operation, on each attribute (or other database granule), upward and downward, through each query operator [Ros99c]. The approach is feasible only with extensive code reuse and automated generation.…”
Section: Implementing First-class Viewsmentioning
confidence: 99%
“…The system has not been implemented, but an interface demonstration (pure html) is available at [Ros98]. Theory details can be found in [Ros99c].…”
Section: Propagation Rules and Frameworkmentioning
confidence: 99%