Exam 5: Database Processing

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What is the purpose of a database?

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Relationships represented using "crow's feet" have an N:M relationship.

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The components of a database application system include all of the following except ________.

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In order to find the data one is looking for in the DBMS,one has to type in the keyword into a query form.

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In a data model,entities always represent physical objects.

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A ________ is a self-describing collection of integrated records.

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The database design team transforms entities into tables and expresses relationships by defining ________.

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________ is a popular enterprise DBMS.

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In a data model,an identifier refers to a unique characteristic of an entity.

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Optimization is the process of converting a poorly structured table into two or more well-structured tables.

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A more formal name for a table is a(n)________.

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_____ is the most popular diagramming tool for database applications.

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A key is a column or group of columns that identifies a unique row in a table.

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Metadata are ________.

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Relational databases represent relationships through the use of formal keys.

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In a relational database,a collection of related records is a(n)________.

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________ show data in a structured context.

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All the following steps involved in transforming a data model into a relational database design are true except ________.

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In an entity-relationship diagram,a ________ on a line means that the entity is optional.

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Which of the following is true of the database development process?

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