bizarre
发表于 2025-3-23 13:21:10
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thalamus
发表于 2025-3-23 14:58:04
Physical Data Base Designusing the software and devices of the user’s installation. Physical data base design includes the preparation of a plan for that realization and its accomplishment. In the terminology of traditional systems design, physical design is analogous to the selection of a file organization, preparation of
GUILT
发表于 2025-3-23 20:39:47
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SPER
发表于 2025-3-23 22:21:55
Controlling Data Base Accessprovided by procedures that ensure data base integrity since security violations do not necessarily compromise data base integrity. For example, the . may wish to restrict the operation of retrieving a record from the Employee data base to individuals who hold managerial positions. If an individual
粗糙
发表于 2025-3-24 03:26:13
Monitoring Data Base Performancestructures and storage methods yield different cost-performance results. A configuration favorable to one application may be unfavorable, even untenable, to one or more of the others. The . must weigh these trade-offs and select the configuration that produces the best overall performance for the le
Mumble
发表于 2025-3-24 07:27:38
Data Administrationhe physical data, it certainly implies an increase in data sharing among user applications and a decrease in redundant storage of identical data items. To facilitate sharing and minimize redundancy requires central control of the content of the data base. Such control addresses the form and meaning
公共汽车
发表于 2025-3-24 10:49:48
Book 1981ations are gathered into data bases that are used to support management reporting and decision making. Effective use of these data bases requires control over their design and development and coordination among the various users. The exercise of these management functions is called data base adminis
paleolithic
发表于 2025-3-24 18:21:02
, and operations are gathered into data bases that are used to support management reporting and decision making. Effective use of these data bases requires control over their design and development and coordination among the various users. The exercise of these management functions is called data ba
myocardium
发表于 2025-3-24 21:11:48
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商品
发表于 2025-3-25 00:27:30
Evaluation and Management Approachesurces to achieve these goals. Goals must be set in the context of organizational goals and management objectives. The selection of alternatives must reflect a knowledge of current and projected technological developments as well as an appreciation of the organizational implications of managing data as a resource.