Aggregate function: SQL uses special functions are called aggregate functions. The functions are used to calculate sums, averages, counts, maximum values, and minimum values. Aggregate functions apply to groups of rows.

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Answer 1

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Chapter 4, Problem 12RQ

Program Plan Intro

Aggregate function:

SQL uses special functions are called aggregate functions.

The functions are used to calculate sums, averages, counts, maximum values, and minimum values.

Aggregate functions apply to groups of rows.

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Answer 2

Question

Chapter 4, Problem 12RQ

Program Plan Intro

Aggregate function:

SQL uses special functions are called aggregate functions.

The functions are used to calculate sums, averages, counts, maximum values, and minimum values.

Aggregate functions apply to groups of rows.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 4, Problem 12RQ

Program Plan Intro

Aggregate function:

SQL uses special functions are called aggregate functions.

The functions are used to calculate sums, averages, counts, maximum values, and minimum values.

Aggregate functions apply to groups of rows.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Chapter 4, Problem 12RQ

Program Plan Intro

Aggregate function:

SQL uses special functions are called aggregate functions.

The functions are used to calculate sums, averages, counts, maximum values, and minimum values.

Aggregate functions apply to groups of rows.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 5

Chapter 4, Problem 12RQ

Program Plan Intro

Aggregate function:

SQL uses special functions are called aggregate functions.

The functions are used to calculate sums, averages, counts, maximum values, and minimum values.

Aggregate functions apply to groups of rows.

Answer 6

Chapter 4, Problem 12RQ

Program Plan Intro

Aggregate function:

SQL uses special functions are called aggregate functions.

The functions are used to calculate sums, averages, counts, maximum values, and minimum values.

Aggregate functions apply to groups of rows.

Answer 7

Chapter 4, Problem 12RQ

Program Plan Intro

Aggregate function:

SQL uses special functions are called aggregate functions.

The functions are used to calculate sums, averages, counts, maximum values, and minimum values.

Aggregate functions apply to groups of rows.

Answer 8

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Answer 9

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Answer 10

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Answer 11

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Aggregate function: SQL uses special functions are called aggregate functions. The functions are used to calculate sums, averages, counts, maximum values, and minimum values. Aggregate functions apply to groups of rows.

Solution Summary: The author explains SQL's aggregate functions, which are used to calculate sums, averages and counts, and apply to groups of rows.

Concept explainers

Aggregate function:

SQL uses special functions are called aggregate functions.

The functions are used to calculate sums, averages, counts, maximum values, and minimum values.

Aggregate functions apply to groups of rows.

Want to see the full answer?

Chapter 4 Solutions