NUL
发表于 2025-3-23 11:19:06
Two Commercial DBMSIn chapters 6 to 8 we have discussed the component parts of a DBMS in vendorindependent terms. In chapter 9 we discussed the distribution of components and data. In this chapter we provide an overview of two prominent commercial DBMS, one relational the other object-oriented. Our aim is to illustrate the functionality of existing DBMS products.
画布
发表于 2025-3-23 14:59:12
The Contribution of Business Interestsid the foundation for probably the most popular of the contemporary data models. From 1968 to 1988 Codd published more than 30 technical papers on the Relational Data Model. He refers to the total content of the pre-1979 papers as version one of the Relational Data Model (Codd, 1990).
CALL
发表于 2025-3-23 19:21:53
The UK Constitution and the European Unionme of the major objectives, advantages, and disadvantages of distributed systems. This leads us to a discussion of some of the major types of distributed database system. We conclude with a detailed look at client-server database systems.
合唱团
发表于 2025-3-24 00:16:14
Vergleichende Politikwissenschaftsome system without any detail of implementation. The objective of this chapter is to describe the major components of a database system without introducing any formal notation, or introducing any concepts of representation, development or implementation. Concepts of representation are considered in
交响乐
发表于 2025-3-24 06:03:52
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Interdict
发表于 2025-3-24 08:07:19
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fringe
发表于 2025-3-24 14:11:55
Justus Schönlau,Dario Castiglione overtake relational database systems by the mid 1990s (OVUM, 1988). Although this clearly has not happened, there is no doubt that object-oriented concepts are influencing the development of information systems. As evidence of this many relational DBMS vendors are beginning to offer OO features and
吝啬性
发表于 2025-3-24 15:19:44
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假
发表于 2025-3-24 22:58:21
https://doi.org/10.1007/978-1-349-15077-9 functions such as storage and concurrency control. The interface comprises generally some database sub-language such as SQL. Around this standard interface most vendors offer a range of additional software tools for producing information systems. We call this collection the DBMS toolkit. Thus the c
大酒杯
发表于 2025-3-25 00:14:12
The UK Constitution and the European Unionme of the major objectives, advantages, and disadvantages of distributed systems. This leads us to a discussion of some of the major types of distributed database system. We conclude with a detailed look at client-server database systems.