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Database Redesign

Database Redesign
The EXISTS keyword will be true if any row in the subquery meets the condition.

False
True

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Database Redesign
Correlated subqueries are similar to a regular subquery.

True
False

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

True
False

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Database Redesign
The data model produced from the reverse engineering process is a true logical model.

False
True

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

None of these
Double use of NOT EXISTS
EXISTS
NOT EXISTS

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Database Redesign
How many copies of the database schema are typically used in the redesign process?

Two
Four
Three
One

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