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Database Redesign

Database Redesign
Typically, there should be at least two different copies of the database schema used in the redesign process.

False
True

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Database Redesign
Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign.

None of these
skeptical
ambivalent
optimistic

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Database Redesign
Information systems and organizations do not just influence each other; they create each other.

True
False

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Database Redesign
To drop a column that is used as a foreign key, first:

drop the primary key.
drop the table containing the foreign key.
All of these
drop the foreign key constraint.

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Database Redesign
Which of the following modifications may not succeed?

Changing a column data type from numeric to char
Neither of the above actions will succeed
Changing a column data type from char to date
Both of the above actions should succeed

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Database Redesign
The data model that is produced from reverse engineering is:

a conceptual model.
a logical model.
None of these
an internal model.

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