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SAP Sybase SQL Anywhere 16.0 » SQL Anywhere Server - SQL Usage » Queries and data modification » Queries » Aggregate functions in queries


How aggregate functions are used to grouped data

In addition to providing information about an entire table, aggregate functions can be used on groups of rows. The GROUP BY clause arranges rows into groups, and aggregate functions return a single value for each group of rows.

 Semantic differences with the empty set
 A common error with GROUP BY
 See also