서지주요정보
XML schema에 대한 유효성을 보장하는 ORDBMS에 저장된 XML 데이타 갱신 기법 = Updating method conforming to XML schema for XML data on ORDBMS
서명 / 저자 XML schema에 대한 유효성을 보장하는 ORDBMS에 저장된 XML 데이타 갱신 기법 = Updating method conforming to XML schema for XML data on ORDBMS / 이지현.
저자명 이지현 ; Lee, Ji-Hyun
발행사항 대전 한국과학기술원, 2004].
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소장정보

등록번호

8015278

소장위치/청구기호

학술문화관(문화관) 보존서고

MCS 04032

휴대폰 전송

도서상태

이용가능

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초록정보

After XML was proposed as the standard for representing and exchanging data on the World Wide Web, a large amount of XML data has been stored in DBMSs and ORDBMS is widely used as an XML repository. The structural constraints of a XML document are defined in a schema, like DTD and XML Schema, and XML Schema has been considered to be superior to DTD in terms of various facilities. Since there are applications requiring frequent updates of XML data, an efficient updating method of XML data is requried. It is necessary to provide updates conforming to XML Schema to produce XML documents, which are valid with respect to XML Schema. However, few systems guarantee the XML Schema-validity of data after an update. In this thesis, we propose an update method for XML data in an ORDBMS and an efficient method to verify the XML Schema-validity for updated XML data. First, we propose a method for matching a data node in an XML document to its corresponding schema component in an XML Schema. Second, we analyze the XML Schema-validity constraints which depend on the type of node in an XML document, and classify the required data states and the schema information for verifying the validity of an update. Then, we design a method for verifying the XML Schema-validity. In addition, we design an update algorithm for each type of update on XML data in an ORDBMS. Third, we analyze the structure of XML Schema and propose a storage method for XML Schema, named as‘the storage method by type’, in order to efficiently extract the schema information for validity-verification. Finally, we provide the performance results of our proposed update algorithms. We show that ‘the storage method by type’is an efficient storage method for XML Schema by comparing the extraction times of schema information that has been stored using ‘the storage method by type’ with those using a naive method.

서지기타정보

서지기타정보
청구기호 {MCS 04032
형태사항 v, 50 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Ji-Hyun Lee
지도교수의 한글표기 : 정진완
지도교수의 영문표기 : Chin-Wan Chung
학위논문 학위논문(석사) - 한국과학기술원 : 전산학전공,
서지주기 참고문헌 : p. 49-50
주제 XML 업데이트
XML 스키마 유효성
XML UPDATE
XML SCHEMA VALIDITY
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