An interactive DSS tool for physical database design
نویسندگان
چکیده
منابع مشابه
An Interactive DSS Tool for Physical Database
The design of efficient physical databases is a complex activity involving the consideration of a large number of factors. Because of the complexity, mathematical programming approaches seeking to optimize the physical database have to make many simplifying assumptions; therefore, their applicability is limited. Further, the database designer may want to experiment with design preferences and f...
متن کاملDatplex: an Extensible Design-aid Tool for Physical Database Design
In this paper, we describe DATPLEX, an extensible design-aid tool for physical database design. DAT-PLEX adopts a layered approach where each layer improves over its input design; and is \extensible" in the sense that an additional layer can be \plugged" into the tool, or an existing layer can be removed from the tool. The current implementation comprises three layers that improve the logical s...
متن کاملTOPYDE: A Tool for Physical Database Design
We describe a tool for physical database design based on a combination of theoretical and pragmatic approaches. The tool takes as input a relational schema, the workload defined on the schema, and some additional database characteristics and produces as output a physical schema. For the time being, the tool is tuned towards Ingres. 1 Introduction The design of databases takes place on several l...
متن کاملA Framework for a Tool for Physical Database Design
The design of an optimal physical database entails an exponential time complexity. This is the main reason which has shifted the attention of researchers to the problem of determining a good physical database design. Two kinds of approaches have been proposed to nd a good physical design, an optimizer and a knowledge based approach. An optimizer based approach is characterized by generating phy...
متن کاملPhysical Database Design for an Object-Oriented Database System
Object oriented database systems typically o er a variety of structuring capabilities to model complex objects This exibility together with type or class hierarchies and computed attributes methods poses a high demand on the physical design of object oriented databases Similar to traditional databases it is hardly ever true that the conceptual structure of the database is also a good that is e ...
متن کاملذخیره 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: Information Sciences
سال: 1991
ISSN: 0020-0255
DOI: 10.1016/0020-0255(91)90053-w