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