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Database Redesign

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

False
True

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

False
True

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Database Redesign
The data model that is produced from reverse engineering is:

None of these
a logical model.
a conceptual model.
an internal model.

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

True
False

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

ALTER TABLE TableName DROP ColumnName
ALTER TABLE TableName DROP COLUMN ColumnName
MODIFY TABLE TableName DROP ColumnName
MODIFY TABLE TableName DROP COLUMN ColumnName

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