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Introduction to SQL

Introduction to SQL
In SQL, which command is used to change a table's storage characteristics?

MODIFY TABLE
None of these
ALTER TABLE
CHANGE TABLE

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Introduction to SQL
There is an equivalent join expression that can be substituted for all subquery expressions.

True
False

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Introduction to SQL
Most companies keep at least two versions of any database they are using.

True
False

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Introduction to SQL
A dynamic view is one whose contents materialize when referenced.

False
True

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Introduction to SQL
Which of the following SQL commands can be used to add data to a database table?

APPEND
UPDATE
INSERT
ADD

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Introduction to SQL
A subquery in an SQL SELECT statement is enclosed in:

braces -- {...}.
parenthesis -- (...) .
CAPITAL LETTERS.
brackets -- [...].

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