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Introduction to SQL

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

False
True

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

None of these
ALTER TABLE
CHANGE TABLE
MODIFY TABLE

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Introduction to SQL
The SQL keyword BETWEEN is used:

to limit the columns displayed.
as a wildcard.
for ranges.
None of these

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Introduction to SQL
Indexes may be created or dropped at any time.

True
False

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Introduction to SQL
Which operator performs pattern matching?

EXISTS operator
None of these
BETWEEN operator
LIKE operator

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Introduction to SQL
SELECT DISTINCT is used if a user wishes to see duplicate columns in a query.

False
True

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