受伤
发表于 2025-3-26 22:30:20
Semantically Rich Materialisation Rules for Integrating Heterogeneous Databasesses the problem of redundancy of object retrieval in a multidatabase setting. We present the materialisation rules we have used for supporting data integration in a heterogeneous database environment. The materialisation rules are capable of directing the global query processor to combine data from
arboretum
发表于 2025-3-27 02:18:34
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乐章
发表于 2025-3-27 06:25:14
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无能力
发表于 2025-3-27 11:53:12
Exploitation of Referential Integrity Constraints for Efficient Update of Data Warehouse Viewsnding views may be outdated. Hence, the maintenance of DW views is crucial for the currency of information. In this paper, we propose a novel method to efficiently self-maintain DW views that contain select-project-joins over relations modelled in a star schema. Specifically, our method avoids compu
使更活跃
发表于 2025-3-27 15:25:20
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craven
发表于 2025-3-27 18:49:36
Hierarchical Group-Based Sampling literature, sampling has been proposed to evaluate queries approximately by using only a subset of the original data. Unfortunately, most of these methods consider either only certain problems arising due to the use of samples in databases (e.g. data skew) or only join operations involving multiple
countenance
发表于 2025-3-27 23:05:20
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Diuretic
发表于 2025-3-28 04:38:00
XDGL: XPath-Based Concurrency Control Protocol for XML Datagreatly increased..In this paper we propose a new XPath-based DataGuide Locking protocol (XDGL), which generalizes on and extends the hierarchical data locking protocol. This new protocol takes into account the semantics and nature of XML. It can be easily implemented on top of traditional databases
Chivalrous
发表于 2025-3-28 10:15:21
Updating XML Using Object-Relational Database should have been. Moreover existing researches focus on updating native XML database so that everything must be created from scratch. Furthermore, an XML document is often treated as a database by keeping all data in one document, leading invariably to data redundancy. Such redundancy in XML docume
defibrillator
发表于 2025-3-28 13:00:07
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