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AGGREGATE FUNCTIONS

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COUNT

Calculates the number of rows

returned by a query.

Syntax:

COUNT (expr)

Aggregate Functions

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SUM

Returns the sum of a set of

values contained in a specified

column on a query.

Syntax:

SUM (expr)

Aggregate Functions

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AVG

Returns the average of the

values in a group. Null values are

ignored.

Syntax:

AVG (expr)

Aggregate Functions

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MAX

Returns the highest value in a

group.

Syntax:

MAX (expr)

Aggregate Functions

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MIN

Returns the lowest value in a

group.

Syntax:

MIN (expr)

Aggregate Functions