Exam 2: Database Design Fundamentals

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Any column (or collection of columns)that determines another column is called a(n)____.

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D

In one style of entity-relationship (E-R)diagrams,diamonds are used to describe ____________________.

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​relationships

The statement "A sales rep's pay class functionally determines his or her pay rate" means that if you know the pay class,you can determine the pay rate.

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A secondary key is the unique identifier for a table.

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At TAL Distributors,there is a ____ relationship between sales reps and customers.

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If the primary key of a table contains only a single column,the table is automatically in ____________________ normal form.

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In a relational database each ____ should be unique.

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____ is one of the categories of update anomalies.

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The concept of functional dependence is trivial to understanding database concepts.

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There is a commonly accepted shorthand representation to show the structure of a relational database: After the name of the table,all the columns in the table are listed within a set of ____.

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In an entity-relationship (E-R)diagram,one-to-many relationships between entities are drawn as ____.

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In a relational database,column B is ____________________ on another column A,if at any point in time a value for A determines a single value for B.

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Normalization is done before creating the database design.

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A programmer interviews users,examines existing and proposed documents,and examines organizational policies to determine exactly the type of data needs the database must support.

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A relation is essentially a three-dimensional table.

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In a relation,the ____________________ of the rows and columns is immaterial.

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In one style of entity-relationship (E-R)diagrams,the letter n is used to represent the ____________________ side of a relationship.

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A determinant is any column (or collection of columns)that determines another table.

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It is possible for the computer to generate values that are used as the primary key column.

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In one style of entity-relationship (E-R)diagrams,a crow's foot is used to represent the ____________________ side of a relationship.

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