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This volume was primarily intended to present selected papers from the workshop on Theory and Applications of Nested Relations and Complex Objects, held in Darmstadt, FRG, from April 6-8, 1987. Other papers were solicited in order to provide a picture of the field as general as possible. Research on nested relations and complex objects originates in the late seventies. The motivation was to obtain data models and systems which would provide support for so-called complex objects or molecular structures, i.e., for hierarchically organized data, thereby overcoming severe shortcomings of the relational model. This theme of research is now maturing. Systems based on those ideas are beginning to be available. Languages of various natures (algebras, calculi, graphical, logic-oriented) have been designed and a theory is slowly emerging. Finally, new developments in database technology and research are incorporating features of models involving complex objects. A variety of approaches is represented in this volume. The first three papers give overviews of major pioneering implementation efforts. The fourth paper is devoted to the important issue of implementation of storage structures. The next three papers propose excursions in the foundations of nested relations and complex objects. The following six contributions are all devoted to modeling of complex objects. The area of database design is represented by the last four papers. |
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The Medicine Bag: Shamanic Rituals & Ceremonies for Personal Transformation
One of the main tenets of shamanism is a belief in the power of ceremony to manifest change in the physical world. Virtually all shamanic traditions use a variety of ritual practices as tools for personal transformation, healing, and celebration.
Now, in this exciting and practical book, Toltec shaman and New York... | | Creating HTML5 Animations with Flash and Wallaby
Creating standards-compliant animations for the Web just got a lot easier. With this concise guide, you’ll learn how to convert Flash animations into HTML5, using Wallaby—the experimental tool from Adobe. Wallaby makes Flash content available for devices that don't support Flash runtimes, including the iPhone and... | | Routing, Flow, and Capacity Design in Communication and Computer Networks"Pioro and Medhis book is very refreshing and gives a comprehensive view of network design. It unifies many important topics on network design that are not found in one place; for example, this book provides the first thorough treatment of multi-layer design. Practitioners will find the book useful due to its development of both models and... |
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