奇思怪想
发表于 2025-3-25 04:34:58
http://reply.papertrans.cn/27/2628/262737/262737_21.png
CHOP
发表于 2025-3-25 10:53:24
http://reply.papertrans.cn/27/2628/262737/262737_22.png
柔声地说
发表于 2025-3-25 11:38:18
Organizational Dynamicstration of systems. This change in work content is also accompanied by changes in the organization of the data processing staff, namely the introduction of the . function. Thus the . has a central role in this drama of organizational change.
Ceramic
发表于 2025-3-25 18:20:27
http://reply.papertrans.cn/27/2628/262737/262737_24.png
发怨言
发表于 2025-3-25 21:49:32
Logical Data Base Designt interesting, or most relevant to the creator of the representation. Aspects which are not of interest are ignored. For example, the descriptive characteristics of an individual that are recorded on a driver’s license include age, hair color, eye color, name, and address but not marital status or educational history.
ETHER
发表于 2025-3-26 03:44:09
Physical Data Base Designccomplishment. In the terminology of traditional systems design, physical design is analogous to the selection of a file organization, preparation of file record layouts, and the creation of the file itself.
invade
发表于 2025-3-26 05:01:32
Salome B. Misana,Verdiana T. Tilumanywaeach individual system. Finally, the existence and use of .-related software, such as query languages and data dictionaries, makes the data base more available and more accessible to both programmers and end users of the data.
Ledger
发表于 2025-3-26 12:02:05
https://doi.org/10.1007/978-3-030-11202-8who is not a manager does manage to retrieve an Employee record, this act is a security violation but does not impair the integrity of the data base. Thus a comprehensive plan for data base security must include but also go beyond integrity measures.
佛刊
发表于 2025-3-26 12:45:00
Hassan Qudrat-Ullah,Aymen A. Kayalof the data items and structures in the data base rather than the actual values of the data items themselves. The management function which exercises control over the form and content of the data base is called data administration.
胆大
发表于 2025-3-26 19:11:51
The DBA Functioneach individual system. Finally, the existence and use of .-related software, such as query languages and data dictionaries, makes the data base more available and more accessible to both programmers and end users of the data.