1. AGGREGATE FUNCTIONS
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2. Aggregate Functions
COUNT
Calculates the number of rows
returned by a query.
Syntax:
COUNT (expr)
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3. Aggregate Functions
SUM
Returns the sum of a set of values
contained in a specified column on a
query.
Syntax:
SUM (expr)
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4. Aggregate Functions
AVG
Returns the average of the values in a
group. Null values are ignored.
Syntax:
AVG (expr)
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5. Aggregate Functions
MAX
Returns the highest value in a group.
Syntax:
MAX (expr)
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6. Aggregate Functions
MIN
Returns the lowest value in a group.
Syntax:
MIN (expr)
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