| Summary: | 碩士 === 國立花蓮教育大學 === 學習科技研究所 === 97 === With the prevalence of the Internet, XML（Extensible Markup Language） became the standard of data exchange on the Internet. Due to the usual use of XML documents for the data exchange or data transfer protocol between heterogeneous platforms, how to manage and query XML documents efficiently become the key-point when the storage of XML documents increases.
At present, there are two typical ways supported by relational database to store XML documents: shred and native XML. Furthermore, the common use of XML to transmit information on the Internet raises the concern of the security of XML documents. So far, in order to improve the security of XML documents, W3C organisation also proposes the suggestions and formats of the encryption and signature for the secured XML documents.
This dissertation is an attempt at designing a model of the transfer between XML and relational database. After completely storing the secured XML into the relational database, with the API providing the secured maintenance and operation, this model can provide the best efficiency of querying data.
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