Changqing Li, Tok Wang Ling's Advanced Applications and Structures in Xml Processing: PDF

By Changqing Li, Tok Wang Ling

ISBN-10: 1615207279

ISBN-13: 9781615207275

Functions and buildings in XML Processing: Label Streams, Semantics usage and information question applied sciences displays the numerous learn effects and most recent findings of students' around the globe, operating to discover and extend the position of XML. This assortment represents an figuring out of XML processing applied sciences in reference to either complex functions and the most recent XML processing applied sciences that's of fundamental value. It offers the chance to appreciate subject matters intimately and observe XML examine at a entire point.

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Additional resources for Advanced Applications and Structures in Xml Processing: Label Streams, Semantics Utilization and Data Query Technologies (Premier Reference Source)

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ProjId. Below is the SQL/XML query Q1 used to define a view that generates the XML result R1 corresponding to the hierarchy from Department to Employee to Project. Q1 uses XMLAgg() with a nested sub-query to generate nested collection elements forming a hierarchical master-detail-detail 21 XML Data Management in Object Relational Database Systems relationship. A similar SQL/XML query can be written to generate XML result R2 that corresponds to the hierarchy from Project to Employee to Department.

0) is the current proposed recommendation from W3C to update XML data. Since SQL does not provide a way to update a column value with self-mutating expression, any updates to an XML column is accomplished using the transform expression of XQUF. Q5 below shows a SQL UPDATE statement that updates the XML type column reportContent. It does so by executing the XMLQuery() function. XMLQuery() embeds the XQUF transform expression that makes a copy of the original XML column value, applies deletion of nodes using the ‘delete node’ expression to the copy, and then returns the modified XML result copy as the return value of XMLQuery().

Until u = NIL or S = empty set 18. = empty set and proot is a returning node then 19. remove all matches to proot in R; 20. return FALSE; 21. endif 22. , 2004). Another large body of research focuses on structural XML indexes, where XML tree nodes are clustered based on their structural similarity. To some extent, an XML index can be thought of as a special XML storage format in that it also clusters tree nodes based on certain criteria. The differences are that XML indexes are solely created for query performance and storage formats are designed for many purposes and need to trade off between different requirements.

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Advanced Applications and Structures in Xml Processing: Label Streams, Semantics Utilization and Data Query Technologies (Premier Reference Source) by Changqing Li, Tok Wang Ling

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