Advanced Database Technology and Design phần 5 pptx

... 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...

Ngày tải lên: 08/08/2014, 18:21

... Weighting 50 0 14.3 Data Quality 50 1 14.3.1 Management Issues 50 2 14.3.2 Design Issues 50 4 14.4 Summary 50 5 References 50 6 Selected Bibliography 50 9 About the Authors 51 1 Index 51 7 xiv Advanced Database ... Suppliers and Parts 147 5. 3.2 Fully Temporalizing Suppliers and Parts 149 5. 4 Intervals 154 5. 5 Interval Types 156 5. 6 Scalar Operators on Intervals 159...

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... 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 ... pp. 59  75. [5] Díaz, O., J. Iturrioz, and M. G. Piattini, Promoting Business Rules in Object- Oriented Methods, J. Systems and Software, Vol. 41, No. 2, 1998, pp. 1 05 1...

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... chapter. 138 Advanced Database Technology and Design Table 5. 1 The Suppliers and Parts Database (Sample Values)Current Snapshot Version (Primary Key Attributes in All Examples Are Shown in Bold and Underlined) SS# SNAME ... Work_age(Peter) 108 Advanced Database Technology and Design [56 ] Fraternali, P., and S. Paraboschi, A Review of Repairing Techniques for I...

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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 ... its single operand and returns another such set. The result in both cases can be regarded as a particular canonical form for the original set. 160 Advanced Database Tec...

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... when generating and evaluating alterna- tive query plans. Section 9.4 examines query processing and optimization in DDBs. 292 Advanced Database Technology and Design must satisfy, and user access ... solution (as 268 Advanced Database Technology and Design 2. We adopt a unified three-dimensional workspace for space (two dimensions) and time (one dimension) features...

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... (from servers to clients) is much greater than the bandwidth 336 Advanced Database Technology and Design 11 Secure Database Systems Elena Ferrari and Bhavani Thuraisingham 11.1 Introduction The number ... the positive one. 356 Advanced Database Technology and Design the United States. In Europe, the Global System for Mobile Communica- tions (GSM) is based on TDMA. In...

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... able to handle nonstandard data so far kept in specialized data stores. 406 Advanced Database Technology and Design Application DBMS Figure 12.1 Nonstandard application using a DBMS and file-based ... the problem of 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 Databa...

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... X → Y and W ⊇ Z, then X,W → Y,Z. • R3 (transitivity): If X → Y and Y → Z, then X → Z. • R4 (pseudo-transitivity): If X → Y and Y,W → Z, then X,W → Z. 456 Advanced Database Technology and Design from ... of maintaining and modifying existing software [10]. The goal of reverse engineering is to understand how software operates. This is done by 450 Advanced Database Tech...

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... of, 54 55 , 459 consistency, 455 57 correctness, 54 defined, 37 design independent, 55 desirable properties of, 53 55 ease of understanding, 55 information base and, 38 irredundancy of, 457 59 mapping, ... control Authorizations content-based, 359 explicit, 357 58 implicit, 357 58 negative, 356 57 , 3 65 objects, 354 positive, 356 57 privileges, 355 propagated, 358 stro...

Ngày tải lên: 08/08/2014, 18:21