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Designing the data storage architecture is an important activity in system design. There are two mai

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考试:高级软件水平考试

科目:(高级)系统分析师(在线考试)

问题:

Designing the data storage architecture is an important activity in system design. There are two main types of data storage formats: files and databases. Files are electronic of data that have been optimized to perform a particular transaction. There are several types of files that differ in the way they are used to support an application. ( ) store core information that is important to the business and , more specifically , to the application , such as order information or customer mailing information. ( ) contain static values , such as a list of valid codes or the names of cities . Typically, the list is used for validation. A database is a collection of groupings of information that are related to each other in some way. There are many different types of databases that exist on the market today. ( ) is given to those databases which are based on older , sometimes outdated technology that is seldom used to develop new applications . (请作答此空) are collections of records that are related to each other through pointers In relational database , ( ) can be used in ensuring that values linking the tables together through the primary and foreign keys are valid and correctly synchronized.
A:Hierarchical database
B:Workgroup database
C:Linked table database
D: Network database

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(高级)系统分析师     分析师     architecture     important     Designing     activity    

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