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XRel: a path-based approach to storage and retrieval of XML documents using relational databases
Full text	Pdf (264 KB)
Source	ACM Transactions on Internet Technology (TOIT) archive Volume 1 , Issue 1 (August 2001) table of contents Pages: 110 - 141 Year of Publication: 2001 ISSN:1533-5399
Publisher	ACM New York, NY, USA
Bibliometrics	Downloads (6 Weeks): 26, Downloads (12 Months): 143, Citation Count: 66

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ABSTRACT

This article describes XRel, a novel approach for storage and retrieval of XML documents using relational databases. In this approach, an XML document is decomposed into nodes on the basis of its tree structure and stored in relational tables according to the node type, with path information from the root to each node. XRel enables us to store XML documents using a fixed relational schema without any information about DTDs and also to utilize indices such as the B+-tree and the R-tree supported by database management systems. Thus, XRel does not need any extension of relational databases for storing XML documents. For processing XML queries, we present an algorithm for translating a core subset of XPath expressions into SQL queries. Finally, we demonstrate the effectiveness of this approach through several experiments using actual XML documents.

REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

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INDEX TERMS

Primary Classification:
I. Computing Methodologies
I.7 DOCUMENT AND TEXT PROCESSING
I.7.1 Document and Text Editing
Subjects: Document management

Additional Classification:
H. Information Systems
H.2 DATABASE MANAGEMENT
H.2.1 Logical Design
Subjects: Schema and subschema
H.3 INFORMATION STORAGE AND RETRIEVAL
H.3.6 Library Automation
Subjects: Large text archives

I. Computing Methodologies
I.7 DOCUMENT AND TEXT PROCESSING
I.7.2 Document Preparation

Nouns: XML

General Terms:
Algorithms, Design, Management, Performance

Keywords:
XML query, XPath, text markup, text tagging

REVIEW

"Shannon Jacobs : Reviewer"

The thesis of this research is that XML is a structured representation of information, and databases are used for storage and retrieval of structured information, so it is possible to map XML documents into a database and vice versa. Done properly more...

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