Titlebook: Advances in Databases and Information Systems; 9th East European Co Johann Eder,Hele-Mai Haav,Jaan Penjam Conference proceedings 2005 Sprin

闪光东本

deciduous

Kiyohiro Houkin,Koji Abe,Satoshi Kurodapast years, but for which no widely accepted solution exists yet. In this paper a technique is proposed for compiling such integrity constraints into incremental and optimized tests specialized for given update patterns. These tests may involve the introduction of new views, but for relevant cases o

Dictation

Bhagelu R. Achyut PhD,Ali S. Arbab MD, PhDterialized in the database, would reduce the evaluation costs of the queries. Optimizing the layout of stored data using view selection has a direct impact on the performance of the entire database system. At the same time, the optimization problem is intractable, even under natural restrictions on

一再遛

Bhagelu R. Achyut PhD,Ali S. Arbab MD, PhD all the qualifying tuples by querying the inverted file for the right relation. The second algorithm employs the common inverted file for both relations. We focus on improving performance of algorithms in main memory by reducing number of L2 cache misses which is achieved by applying such technique

curriculum

让你明白

Christopher G. Thanos,Dwaine F. Emerichlimination method in [22]. However, the expressive power of constraint query languages with linear cardinality constraints is still poorly understood in comparison with other cases of constraint query languages. This paper makes several contributions to the analysis of their expressive power. Severa

sclera

Madumali Kalubowilage,Stefan H. Bossmannre information. The approach is essentially based on agent-based digital map processing software that is capable of handling raster or vector maps, and maps with different colour schemes, with different packing methods, with different systems of signs, etc. Each application can be configured and rec

缓解

Paula Villarreal,Rahul Pal,Gracie Vargase is represented as a many-sorted algebra whose sorts are sets of data type values and different kinds of nodes and whose operations are data type operations and node accessors. It is shown that a document can be easily mapped to its implementation in terms of nodes and accessors defined on them.

前兆

The Transforming Genes of Polyoma Virushis paper, we present another efficient and novel geometric sequence mechanism, which transforms XML documents and XPath queries into the corresponding geometric data/query sequences. XML querying is thus converted to finding non-contiguous geometric subsequence matches. Our approach ensures correct

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