Aggregate Functions
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 Resources WHERE Type = 'FILE'
COUNT(DISTINCT)
Returns the number of distinct, non-null field values matching the query criteria.
SELECT COUNT(DISTINCT FullPath) AS DistinctValues FROM Resources WHERE Type = 'FILE'
AVG
Returns the average of the column values.
SELECT Permission, AVG(AnnualRevenue) FROM Resources WHERE Type = 'FILE' GROUP BY Permission
MIN
Returns the minimum column value.
SELECT MIN(AnnualRevenue), Permission FROM Resources WHERE Type = 'FILE' GROUP BY Permission
MAX
Returns the maximum column value.
SELECT Permission, MAX(AnnualRevenue) FROM Resources WHERE Type = 'FILE' GROUP BY Permission
SUM
Returns the total sum of the column values.
SELECT SUM(AnnualRevenue) FROM Resources WHERE Type = 'FILE'
COUNT
Returns the number of rows matching the query criteria.
SELECT COUNT(*) FROM Resources WHERE Type = 'FILE'
COUNT(DISTINCT)
Returns the number of distinct, non-null field values matching the query criteria.
SELECT COUNT(DISTINCT FullPath) AS DistinctValues FROM Resources WHERE Type = 'FILE'
AVG
Returns the average of the column values.
SELECT Permission, AVG(AnnualRevenue) FROM Resources WHERE Type = 'FILE' GROUP BY Permission
MIN
Returns the minimum column value.
SELECT MIN(AnnualRevenue), Permission FROM Resources WHERE Type = 'FILE' GROUP BY Permission
MAX
Returns the maximum column value.
SELECT Permission, MAX(AnnualRevenue) FROM Resources WHERE Type = 'FILE' GROUP BY Permission
SUM
Returns the total sum of the column values.
SELECT SUM(AnnualRevenue) FROM Resources WHERE Type = 'FILE'