Querying XML documents

  • Miller J
  • Sheth S
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Abstract

Web based environments will typically need to maintain many
documents (e.g. simulation model information and data results from
multiple sites). Ideally, this information would be held in a widely
utilized and highly viewable format. The eXtensible Markup Language
(XML) is a new standard that meets this criteria for World Wide Web
based applications. It is sophisticated enough so that complex real
world structures and relationships may be captured. Large collections of
XML documents can be stored for efficient retrieval using database
management systems (DBMSs). Current database management is represented
by the object oriented (OO) and object-relational (OR) database systems.
Each type has their own query languages, Object Query Language (OQL,
v.2) and Structured Query Language (SQL), respectively. These database
query languages provide a high-level way to ask for information from a
database. The article looks at storing and retrieving XML documents. It
surveys work being done on query languages and tools for XML. It then
discusses a simple graphical XML query tool for front end use in the
Java Simulation (JSIM) Web based simulation environment

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Authors

  • John A. Miller

  • Sonali Sheth

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