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Introduction to SQL

Introduction to SQL
Scalar aggregate are multiple values returned from an SQL query that includes an aggregate function.

False
True

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Introduction to SQL
In SQL, which of the following is not a data definition language commands?

UPDATE
GRANT
REVOKE
RENAME

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Introduction to SQL
SUM, AVG, MIN, and MAX can only be used with numeric columns.

True
False

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Introduction to SQL
What operator tests column for the absence of data?

None of these
EXISTS operator
IS NULL operator
NOT operator

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Introduction to SQL
The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

True
False

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Introduction to SQL
To establish a range of values, < and > can be used.

False
True

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