Exam 6: Relational Databases and Sql

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Enterprise systems are integrated software packages designed to provide complete integration of:

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C

The relationship that relates to the specification of how many occurrences of an entity can participate in the given relationship with any one occurrence of the other entity in the relationship is referred to as ______________________________.

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cardinality constraint

Which of the following is the entity or agent?

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The first step in REA is evaluating the attributes.

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An entity in an accounting system can be classified as a resource, event or agent about which data are collected.

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The cardinality constraint:

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In an REA diagram, the rectangle is used to represent the composite attribute.

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Relationships map and define the way in which data can be extracted from a database.

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The _________________________ is specified to uniquely identity each tuple in the relation.

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Legacy systems do not usually have which of the following characteristics?

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Which of the following SQL statements would extract the employee number and date for every instance that an employee worked more than 8 hours any particular day?

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A set of data that describes a single instance of the entity represented by a relation is known as a(n) ____________________.

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The ____________________ command is used to add new tuples to a relation.

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Which of the following is not a relationship type?

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A recursive relationship is created when there is an employee being supervised, and another employee is the supervisor.

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The notation 1,N is used to specify the relationship type of _________________________.

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Which of the following relational commands would a manager use to combine the data from two related relations into a third relation?

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A(n) ____ of an entity is on specific thing of the type defined by the entity.

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REA stands for resources, entities and agents

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Which is not an SQL command in which data can be changed in the database?

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