Object-oriented database schema normalization.

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Schema Integration for Object Oriented Database Systems

View integration is an important technique for developing software systems built upon large databases independent which paradigm is used for realizing the database. We analyzed to which extent traditional view integration methods cover all aspects of object-oriented datamodels and found, in particular, that the integration of methods is hardly supported. We present a methodology for integrating...

متن کامل

Schema Versions in Object-Oriented Database Systems

Object-oriented database management systems (OODBMS) are especially suited to model complex and highly dynamic application domains. In this paper, we propose a schema uersioning approach which supports the dynamic change of an objectoriented database schema while it is used by running applications. OUT mechanism allows to have applications working with diflerent schema weTsions on top of the sa...

متن کامل

NIVERSITY Support for Object - Oriented Database Schema Design

Even with the help of present schema design tools (e.g. graphical editors, EER model techniques, etc) the task of constructing any non-trival object oriented database schema (OODB) is immense. This paper describes a system, TYPSYS, which automatically produces a type hierarchy from information about the leaf object types (types at leaf level of the hierarchy) which are visible from the database...

متن کامل

Object - Oriented Schema Extension

ed Schema EXTENSION Figure 1: The concept of the abstraction mechanism An algorithm that factors out the common structure of two given schema de nitions has many uses. One useful application of this algorithm is that, ideally, one has to write software which is common to both schema 1 and 2 only once for the classes in the abstracted schema. Then, by extension, the software for schema 1 and 2 i...

متن کامل

Schema Refinement and Schema Integration in Object-oriented Databases Schema Reenement and Schema Integration in Object-oriented Databases

This report presents a formal approach to support schema integration in object-oriented databases. The basis of the approach is a synthetic subclass order to compare classes. Classes are integrated in a natural way using a join operator w.r.t. the subclass order. In contrast with existing literature, our subclass order compares classes not only by their attributes, but also by the behaviour of ...

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

ژورنال

عنوان ژورنال: Journal of Computer Science and Cybernetics

سال: 2012

ISSN: 1813-9663,1813-9663

DOI: 10.15625/1813-9663/19/2/1504