Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/14781
Title: Designing and querying XML views based on the ORA-SS data model
Authors: CHEN YABING
Keywords: XML, ORA-SS, XML View, Valid XML View, XQuery, SQLX.
Issue Date: 3-Jun-2005
Source: CHEN YABING (2005-06-03). Designing and querying XML views based on the ORA-SS data model. ScholarBank@NUS Repository.
Abstract: Existing systems for XML views only support select operation applied in the views and do not guarantee that the designed views are valid in terms of semantics. We propose a novel method to design valid yet flexible XML views based on the semantically rich Object-Relationship-Attribute model designed for SemiStructured data (ORA-SS), which can express semantics that cannot be expressed in other data models such as XML, DTD or XML Schema, etc. Furthermore, in the case where XML data are stored in a native XML database or as XML documents, we develop an algorithm to automatically generate XQuery expressions for the views so that XQuery can be directly executed against XML documents. In the other case, XML source data may also be stored in object-relational databases. Thus, we develop a method to automatically generate SQLX query expressions for the views.
URI: http://scholarbank.nus.edu.sg/handle/10635/14781
Appears in Collections:Ph.D Theses (Open)

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