Advanced Database Technology and Design (Artech House - download pdf or read online

By Mario Piattini

ISBN-10: 0890063958

ISBN-13: 9780890063958

ISBN-10: 1580534694

ISBN-13: 9781580534697

An creation to advancements in database structures layout offered from an functions standpoint. that includes contributions from specialists within the box, it can pay particular recognition to matters raised via new traits in database layout, and the way those advancements have an effect on the programmer and database administrator.

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In making the move, the system changes the state of the domain. Therefore, this is a complex example of the active function. If the system were naive enough to offer sincere advice on the next move to the player, that would be an example of the informative function, in the mode on request. 2 Let us consider an e-mail system. The domain consists of users, who can send or receive messages, distribution lists, active messages, folders created by users to organize their active messages, and so on. Each message has a content, a subject, a sender, a date, and one or more receivers.

Data Structure Diagrams,” Data Base, Vol. 1, No. 2, 1969. [3] Codasyl DDL, “Data Description Language,” J. S. Government Printing Office, Vol. 3, No. 4, 1978, pp. 147–320. [4] Codd, E. , “A Relational Model of Data for Large Shared Data Banks,” Comm. ACM, Vol. 13, No. 6, 1970, pp. 377–387. [5] Ullman, J. , Database and Knowledge-Base Systems, Rockville, MD: Computer Science Press, 1988. , and J. Melton, “Standards—SQL: 1999 (Formerly Known as SQL3),” SIGMOD Record, Vol. 28, No. 1, 1999, pp. 131–138.

We will not describe any concrete examples, since they are well known, and identification of the functions they perform is simple. However, it may be worthwhile to comment on some particular classes of systems and to see that, even if one might doubt whether they are ISs, they in fact perform the functions we have seen in this section. 1 Assume a chess-playing system that can play against either a human or a machine. We are going to see that this system may be considered an IS. The domain consists of the board, the pieces and their position on the board, the player, and the rules of the game.

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Advanced Database Technology and Design (Artech House Computer Library) by Mario Piattini

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