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Database Redesign

Database Redesign
Database redesign is especially difficult if the database has no data.

False
True

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

False
True

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Database Redesign
A regular subquery is processed from the bottom up.

False
True

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Database Redesign
If a database is built correctly the first time, it will not have to be redesigned.

False
True

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

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

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