Advanced Database Technology and Design phần 8 pdf

... cost (production and maintenance), and complexity of system evolution. 4 08 Advanced Database Technology and Design To put the right components together, that is, to obtain complete and adequate systems, ... engines. 420 Advanced Database Technology and Design 12 Component Database Systems Andreas Geppert and Klaus R. Dittrich 12.1 Introduction DBMSs support ind...

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... infor- mation systems design. For example, PowerDesigner (Sybase) and VIS (Meta system) help integrate several schemas graphically. 4 68 Advanced Database Technology and Design to present a synthetic ... modeling and heuristics, which capture user needs and DB administration needs. Figure 13.19 shows a pos- sible architecture for a mapping tool. 4 78 Advanced Database...

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... to remedy the lock and log file problems [24]. 16 Advanced Database Technology and Design 1 Evolution and Trends of Database Technology Adoración de Miguel, Mario Piattini, and Paloma Martínez 1.1 ... 79 3.5.2 Active Rules in Use 81 3.5.3 Standardizing Active Behavior in SQL: 1999 85 3.6 Rule Maintenance 85 3.7 Summary 87 References 88 Selected Bibliography 89...

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... B., E. B. Swanson, and G. E. Tompkins, Characteristics of Applications Soft- ware Maintenance, Comm. ACM, Vol. 21, 19 78, pp. 466471. 88 Advanced Database Technology and Design schema. The ... and the fourth the column number. 50 Advanced Database Technology and Design If Sally is processed before Tom, the constraint is never violated, no rule actions are executed,...

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... managed and used in a temporal database dif- fers in a variety of important ways from how it is managed and used in a snapshot database; hence the present chapter. 1 38 Advanced Database Technology and ... Work_age(Peter) 1 08 Advanced Database Technology and Design [56] Fraternali, P., and S. Paraboschi, A Review of Repairing Techniques for Integrity Maintenance...

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... single interval. 164 Advanced Database Technology and Design • i1 DURING i2 is true if and only if s2 ≤ s1 and e2 ≥ e1 are both true. 9 • i1 STARTS i2 is true if and only if s1 = s2 and e1 ≤ e2 are ... assigned to it. A named row type is 1 98 Advanced Database Technology and Design of those writers unfortunately damaged their cause by proposing database designs...

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... involved in 232 Advanced Database Technology and Design Conceptual design UML notation Standard design ODL Implementation design OODBMS Figure 7.3 Design process of an object-oriented database schema. For ... the requirements that will feed an MM-DBMS design. We emphasize the structural complexity and 254 Advanced Database Technology and Design 7.2.1 Objects...

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... −5670 88 8 30 987 −90 S 2 accno balance 100 2000 123 300 130 −200 S 1 accno name 100 Anne 123 Bob 130 Carla S 2 accno name 400 David 563 Emily 88 8 Fred 987 George S 1 accno balance 400 0 563 −5670 88 8 ... 0 563 Emily −5670 88 8 Fred 30 987 George −90 S 2 accno name balance 100 Anne 2000 123 Bob 300 130 Carla −200 S 1 accno name 100 Anne 123 Bob 130 Carla 400 David 563 Emily 88 8 Fre...

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... the bandwidth for the downlink communication (from servers to clients) is much greater than the bandwidth 336 Advanced Database Technology and Design 11 Secure Database Systems Elena Ferrari and ... [8] , TeleWeb [9], and Weblicator [10], the proxy is added to the client part of the sys- tem. In other systems, like TranSend [11] and Digestor [12], the 330 Advanced Databas...

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... databases, 137 38 defined, 137 snapshot time, 1 38 See also Databases Social quality, 492 SODA model, 388 Software through Picture, 4 68 SORION model, 388 89 defined, 388 security policy, 388 89 system ... 69 78 execution model, 78 implementation issues, 78 85 information passing, 78 language expressiveness, 78 rule maintenance, 85 87 summary, 87 88 university database exa...

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