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Database Redesign

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

True
False

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Database Redesign
It is not easy to build a database correctly the first time.

False
True

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Database Redesign
A correlated subquery is processed as a nested subquery.

True
False

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Database Redesign
The data model produced from the reverse engineering process does not include intersection table data.

False
True

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Database Redesign
How can you find rows that do not match some specified condition?

EXISTS
None of these
NOT EXISTS
Double use of NOT EXISTS

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Database Redesign
Which of the following modifications may not succeed?

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

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