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Database Redesign

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

True
False

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

True
False

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Database Redesign
The use of the double NOT EXISTS can be used to find rows that do not match some specified condition.

False
True

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Database Redesign
What SQL command can be used to add columns to a table?

ALTER TABLE TableName ADD COLUMN ColumnName
MODIFY TABLE TableName ADD ColumnName
MODIFY TABLE TableName ADD COLUMN ColumnName
ALTER TABLE TableName ADD ColumnName

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Database Redesign
The NOT EXISTS keyword will be true if:

both of these two conditions are met.
neither of these two conditions is met.
any row in the subquery meets the condition.
all rows in the subquery fail the condition.

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Database Redesign
Some organizations take the stand that no application should ever employ the true name of a table.

True
False

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