Learn PostgreSQL
Tuesday, September 29, 2009
Using the Group Functions
What Are Group Functions ?
Group functions operate on sets of rows to give one result per group.
Types of Group Functions :
AVG
COUNT
MAX
MIN
SUM
Group Functions :
Syntax
SELECT [column,]
group_function(column)
, ... FROM table [WHERE condition]
[GROUP BY column] [ORDER BY column]
;
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