Examples of Aggregate Functions

Below are several examples of SQL aggregate functions. You can use these with a GROUP BY clause to aggregate rows based on the specified GROUP BY criterion. This can be a reporting tool.

COUNT

Returns the number of rows matching the query criteria.

SELECT COUNT(*) FROM Tables WHERE Name = 'FactProductInventory'

COUNT(DISTINCT)

Returns the number of distinct, non-null field values matching the query criteria.

SELECT COUNT(DISTINCT DslAddressDatabase) AS DistinctValues FROM Tables WHERE Name = 'FactProductInventory'

AVG

Returns the average of the column values.

SELECT Type, AVG(AnnualRevenue) FROM Tables WHERE Name = 'FactProductInventory' GROUP BY Type

MIN

Returns the minimum column value.

SELECT MIN(AnnualRevenue), Type FROM Tables WHERE Name = 'FactProductInventory' GROUP BY Type

MAX

Returns the maximum column value.

SELECT Type, MAX(AnnualRevenue) FROM Tables WHERE Name = 'FactProductInventory' GROUP BY Type

SUM

Returns the total sum of the column values.

SELECT SUM(AnnualRevenue) FROM Tables WHERE Name = 'FactProductInventory'

COUNT

Returns the number of rows matching the query criteria.

SELECT COUNT(*) FROM Tables WHERE Name = 'FactProductInventory'

COUNT(DISTINCT)

Returns the number of distinct, non-null field values matching the query criteria.

SELECT COUNT(DISTINCT DslAddressDatabase) AS DistinctValues FROM Tables WHERE Name = 'FactProductInventory'

AVG

Returns the average of the column values.

SELECT Type, AVG(AnnualRevenue) FROM Tables WHERE Name = 'FactProductInventory'  GROUP BY Type

MIN

Returns the minimum column value.

SELECT MIN(AnnualRevenue), Type FROM Tables WHERE Name = 'FactProductInventory' GROUP BY Type

MAX

Returns the maximum column value.

SELECT Type, MAX(AnnualRevenue) FROM Tables WHERE Name = 'FactProductInventory' GROUP BY Type

SUM

Returns the total sum of the column values.

SELECT SUM(AnnualRevenue) FROM Tables WHERE Name = 'FactProductInventory'