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Database Redesign

Database Redesign
Dependency graphs are diagrams that consist of nodes and arcs that show the dependencies of a database.

True
False

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Database Redesign
Which SQL-92 standard SQL command can be used to change a table name?

RENAME TABLE
CHANGE TABLE
None of these
ALTER TABLE

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

True
False

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Database Redesign
A regular subquery can be processed:

None of these
from the bottom up.
by nesting.
from the top down.

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Database Redesign
The process of reading a database schema and producing a data model from that schema is known as:

data modeling.
database design.
None of these
reverse engineering.

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Database Redesign
Reverse engineering is the process of reading a database schema and producing a data model from that schema.

False
True

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