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In this paper we present a middleware for storing and retrieving XML document in relational databases. To store XML documents in relational databases, several mapping prototypes can be used. In this prototype we chose XParent model mapping method and free of cost available technologies MySQL, Php MyAdmin and PHP classes are used the example. The key to middleware prototype is storing and retrieving...
Providing a transparent and automatic communication between health information systems for the purpose of exchanging patients' data among healthcare professionals is deemed as one of the most challenging problems in eHealth. Indeed, data storage in health information systems is mainly performed in relational databases, whereas eXtensible Markup Language (XML) is seen as the de facto standard for exchanging...
Today XML is the de facto standard of data exchange format for the information on the Web. At the same time, database systems are well known for consistent storage, retrieval and manipulation of data. XML querying language (XPath) is used to access XML documents whereas Structured Query Language (SQL) for retrieving and manipulating data in relational database. It may not be possible for users and...
This work describes a generic database service for the lightweight Venice Service Grid, which has been developed at the University of Kaiserslautern, Germany. By using Web services any SQL query can be processed and the corresponding result sets are sent back as strongly typed XML documents. The accurately defined interface allows an easy-to-use, platform and programming language independent access...
Many researchers and vendors have proposed their XML storage approaches based on relational databases (RDB), which are called XML-relational databases (XRDB). To manipulate XML data in XRDB, many excellent model-mapping schemas were proposed to provide schema definitions to translate various XML documents with different structures into relational tables. Such an approach can support any sophisticated...
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