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17 Cards in this Set
- Front
- Back
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A set of requirements that is necessary to support the operations of a preticular database user is known as a
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A. User View
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A design that supports all the user views encountered in the design process is known as a
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B. cumlative design
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When a correct design is not obvious, what is the first step increating a user view?
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D. determine the relationships among entities
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When determining the properties for each entity as you design the user view, these properies will become what in the table
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B. columns
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What type of digram viusually represents the structure of a database?
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C. E-R
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An entity that does not require a relationship to another entitiy for identification is called
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C. An independent entity
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In the design diagram, independententitits are distinguished by
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A. squae corners
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In the design diagram, dependent entities are distinguished by
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B. rounded corners
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After the information level design is completed, what is the next step?
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A. the physical level design
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A user view is the set of requirements that is neccessary to support the operations of a particular databse user.
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True
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A design that supports all the user views is called a contructive design
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False
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In the design diagram, independent entities are distinguished by
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A. square corners
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In the design diagram, dependent entities are distinguished by
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B. Rounded Corners
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After the information level design is completed, what is the next step?
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A. Physical level design
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What is the easiest way to produce the design for the DBMS, given that the final information-level design already exists sin a relational format
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C. use the same tables and columns.
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When a DBMS cannot enforce the restrictions you place on tables, who should enforce them?
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A. the users of the system
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The number closes to the relationship represents what cardinality
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B. minimum
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