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1. T/F: A SELECT statement embedded in the FROM clause is also called a derived table.
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2, T/F: An OUTER JOIN returns only those rows where the linking values match in both of
the tables
•
3. T/F: A SELECT expression that is embedded within one of the clauses of a SELECT
statement is a subquery.
•
4. T/F: A column query is an embedded SELECT expression that returns one or more
columns and zero to many rows.
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5. T/F: The correlation name is also known as an aggregate
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6. T/F: A table query is an embedded SELECT expression that returns only one column
and no more than one row.
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7. T/F: An INNER JOIN returns all rows from the first table and any matching rows from
the second table.
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8. What SELECT statement clause cannot be used when embedded in a JOIN?
•
9. The ___ keyword is used to assign a correlation name.
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10. Which aggregate function returns a count of all nonnull values returned by a value
expression?
11. Which aggregate function returns the maximum value of a value expression?
•
12. Which aggregate function is used to compute a total of a value expression?
•
13. Which aggregate function calculates the mean for a value expression?
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14. T/F: When an aggregate function is used as a search condition it must be placed in an
aggregate function.
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15. T/F: The GROUP BY clause is added after the FROM clause.
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16. T/F: A LEFT OUTER JOIN returns all rows from the second table and any matching
rows from the first table.
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17. T/F: The ORDER BY clause is used to group matching values of a specified column.
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18. T/F: Grouping data with aggregate functions enables you to see subtotals for
categories of data.
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19. T/F: Filters that use a predicate on an aggregate function must be placed in a WHERE
clause.
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20. The SQL standard provides a set of __ functions that enable you to calculate a single
value from the rows in a result set or from the values returned by a value expression
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