Advanced Database Technology and Design phần 2 doc

... 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, and both Sally and ... subset of A. In a complete and correct conceptual schema, A = C. 54 Advanced Database Technology and Design A B C Required knowledge Conceptual schema Figure 2. 9 Compl...

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... timepoints are (to repeat) indivisible, and the concept of duration strictly does not apply. 144 Advanced Database Technology and Design Deductive Databases 129 Table 4 .2 Summary of Deductive DBMS Prototypes Deductive Prototypes ... STATUS CITY S1 Smith 20 London S2 Jones 10 Paris S3 Blake 30 Paris S4 Clark 20 London S5 Adams 30 Athens SP S# P# S1 P1 S1 P2 S1 P3 S1 P4 S1 P5 S...

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... 1 92 RID, 21 516 schema example, 22 1 standard schema design, 23 3 42 subtyping, 21 9 summary, 24 647 technology, 22 530, 24 7 uses, 21 1 See also Databases 528 Advanced Database Technology and Design Persistent ... notation, 22 0 21 implementation schema design, 24 246 industry standard, 1 92 inheritance, 1 92, 21 9 20 introduction to, 21 1 12 joins, 21...

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... 399 Selected Bibliography 4 02 12 Component Database Systems 403 12. 1 Introduction 403 12. 2 Motivation 405 12. 3 Principles of Component DBMSs 409 xii Advanced Database Technology and Design represented ... Active Function 30 2. 1.4 Examples of ISs 31 2. 2 Conceptual Modeling 33 2. 2.1 Conceptual Schema of the State 34 2. 2 .2 Information Base 38 2. 2.3 Conceptual Sch...

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... 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 both ... intervals: • i1 UNION i2 yields [MIN(s1,s2),MAX(e1,e2)] if i1 MERGES i2 is true and is otherwise undefined. • i1 INTERSECT i2 yields [MAX(s1,s2),MIN(e1,e2)] if i1 OVER- LAPS i...

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... involved in 23 2 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 25 4 Advanced Database Technology and Design 7 .2. 1 Obj...

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... can play in complex 27 4 Advanced Database Technology and Design x y t A B C D F E R1 R2 T1* T2* q1 q2 T0* (a) C D A Q (b) Time F E A 10 13 17 20 È C B (c) Figure 8.4 Spatial and temporal layout ... info 3D R-tree Figure 8 .2 A unified (spatiotemporal) indexing scheme. 3 02 Advanced Database Technology and Design accno name balance 100 Anne 20 00 123 Bob 300 13...

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... Vol. 27 , No. 2, 1998, pp. 29 5306. [20 ] Özsu, M. T., and P. Valduriez, Principles of Distributed Database Systems, 2nd ed., Upper Saddle River, NJ: Prentice-Hall, 1999. [21 ] Garcia-Molina, H., and ... Press, 1995. [23 ] Wiederhold, G., Mediators in the Architecture of Future Information Systems, IEEE Computer, Vol. 25 , No. 3, 19 92, pp. 3849. 326 Advanced Database T...

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... search engines. 420 Advanced Database Technology and Design 12 Component Database Systems Andreas Geppert and Klaus R. Dittrich 12. 1 Introduction DBMSs support individual applications and comprehensive ... design and development of component DBMSs and their appli- cations. Because the type of systems considered here are only in the process of 424 Advanced Databas...

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... instances aims to find valid dependencies. 4 72 Advanced Database Technology and Design Author Title Editor Date A1 T1 E1 D1 A2 T1 E1 D1 A2 T2 E2 D2 A3 T3 E2 D3 Figure 13.14 Learning from examples. This ... maintaining and modifying existing software [10]. The goal of reverse engineering is to understand how software operates. This is done by 450 Advanced Database Technology...

Ngày tải lên: 08/08/2014, 18:21