{ AVERAGE | AVG | AVE } ( [ DISTINCT | ALL ] value_expression )
Syntax Elements
- DISTINCT
- Exclude duplicates specified by value_expression from the computation.
- ALL
- All values that are not null of value_expression, including duplicates, are included in the computation.
- value_expression
- A literal or column expression for which an average is to be computed.
- The value_expression cannot be a reference to a view column derived from a function, and cannot contain any ordered analytical or aggregate functions.