Controlling Access to XML Documents over XML Native and Relational Databases

نویسندگان

  • Lazaros Koromilas
  • George Chinis
  • Irini Fundulaki
  • Sotiris Ioannidis
چکیده

In this paper we investigate the feasibility and efficiency of mapping XML data and access control policies onto relational and native XML databases for storage and querying. We developed a re-annotation algorithm that computes the XPath query which designates the XML nodes to be re-annotated when an update operation occurs. The algorithm uses XPath static analysis and our experimental results show that our re-annotation solution is on the average 7 times faster than annotating the entire document.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

NATIVE XML DATABASES vs. RELATIONAL DATABASES IN DEALING WITH XML DOCUMENTS

When dealing with data-centric XML documents, it is possible to convert XML documents into a relational database, which can then be queried using SQL. Such relational databases are called XML-enabled databases. On the other hand, the best choice for storing, updating and retrieving document-centric XML documents is usually a native XML database (NXD). NXDs store XML documents as logical units, ...

متن کامل

Apply Uncertainty in Document-Oriented Database (MongoDB) Using F-XML

As moving to big data world where data is increasing in unstructured way with high velocity, there is a need of data-store to store this bundle amount of data. Traditionally, relational databases are used which are now not compatible to handle this large amount of data, so it is needed to move on to non-relational data-stores. In the current study, we have proposed an extension of the Mongo...

متن کامل

Towards Achieving an Optimum Performanceof XML Data into Both Types of XML Databases: XML-Enabled Databases and Native XML Databases

EXtensible Markup Language (XML) promises to be the standard language for data representation in e-business, particularly when that data is exchanged over or browsed on the Internet since it is nested and having a self-describing structure that provides a simple yet flexible means for business applications to model and exchange data. There are two alternative database types used for of storing ...

متن کامل

Apply Uncertainty in Document-Oriented Database (MongoDB) Using F-XML

As moving to big data world where data is increasing in unstructured way with high velocity, there is a need of data-store to store this bundle amount of data. Traditionally, relational databases are used which are now not compatible to handle this large amount of data, so it is needed to move on to non-relational data-stores. In the current study, we have proposed an extension of the Mongo...

متن کامل

Supporting XML Security Models Using Relational Databases: A Vision

As the secure distribution and sharing of information over the World Wide Web becomes increasingly important, the needs for flexible and efficient support of access control systems naturally arise. Since the eXtensible Markup Language (XML) is emerging as the format of the Internet era for storing and exchanging information, there have been, recently, many proposals to extend the XML model to i...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009