Storing MDBS catalog information in an X.500 directory service

نویسندگان

  • Patrick Martin
  • Wendy Powley
چکیده

The CORDS Multidatabase System (MDBS) provides applications with an integrated view of a collection of distributed heterogeneous data sources. Applications are presented with a relational view of the available data and are able to access the data using standard SQL operations. The information needed by the MDBS to provide its services is kept in an internal database called the MDBS Catalog. This paper describes how the EAN X.500 directory service was used as a storage facility for the MDBS Catalog. The development of the X.500 catalog schema is outlined and the integration of the X.500 service with the CORDS MDBS is discussed. Based upon our experiences, we outline our initial impressions regarding the feasibility of using the X.500 directory service to store the MDBS Catalog information.

برای دانلود 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

Catalogue management for a multidatabase system using an X.500 directory system

Multidatabase systems (MDBSs) provide applications with integrated access to a collection of databases. The component database systems are typically heterogeneous, distributed, autonomous and pre-existing. MDBSs, like conventional database management systems (DBMSs), require catalogue information to provide their services. The catalogue must be stored in a separate system database, or repositor...

متن کامل

Anonymous Mobility Management for Third Generation Mobile Networks

With the increasing use of mobile and nomadic communication devices requirements for security and privacy are rising as well. Following brief surveys of existing approaches to mobility management, general security considerations for UMTS and confidential storing of location information we introduce the ideas and concepts behind the new ‘anonymous subscriber’ method for UMTS, largely based on ex...

متن کامل

Schema Publishing in X.500 Directory

The X.500 directory provides a powerful mechanism for storing and retrieving information about objects of interest. To interpret the information stored in the directory, the schema must be known to all the components of the directory. The rapid increase in the number of schemas and the relatively slow pace of standardization and subsequent publication has given rise to the challenge of making t...

متن کامل

Distribution of this memo is unlimited. Technical discussion of this

The Lightweight Directory Access Protocol (LDAP) is an Internet protocol for accessing distributed directory services which act in accordance with X.500 data and service models. This document describes the X.500 Directory Information Models, as used in LDAP. Table of

متن کامل

The performance of SQL queries to an X.500 directory system

The X.500 standard speci es a distributed directory service designed to store information about people and objects associated with computer networks. Its API is geared toward retrieving information based on this application domain. Recently, a number of projects have used the directory in non-traditional ways. Such applications, however, are constrained by the X.500 information model and the li...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1994