Aggregate Functions
COUNT
Returns the number of rows matching the query criteria.
SELECT COUNT(*) FROM Customer WHERE CustomerId = '12345'
COUNT(DISTINCT)
Returns the number of distinct, non-null field values matching the query criteria.
SELECT COUNT(DISTINCT Name) AS DistinctValues FROM Customer WHERE CustomerId = '12345'
AVG
Returns the average of the column values.
SELECT TotalDue, AVG(AnnualRevenue) FROM Customer WHERE CustomerId = '12345' GROUP BY TotalDue
MIN
Returns the minimum column value.
SELECT MIN(AnnualRevenue), TotalDue FROM Customer WHERE CustomerId = '12345' GROUP BY TotalDue
MAX
Returns the maximum column value.
SELECT TotalDue, MAX(AnnualRevenue) FROM Customer WHERE CustomerId = '12345' GROUP BY TotalDue
SUM
Returns the total sum of the column values.
SELECT SUM(AnnualRevenue) FROM Customer WHERE CustomerId = '12345'