Aggregate Expression Functions

FDO API

 
Aggregate Expression Functions
 
 
 

The following aggregate expression functions are supported:

Function Name Description
Avg Returns the average of the values identified by the provided expression.
Count Returns the number of rows returned by a query identified by the provided expression.
Max Returns the maximum value of the provided expression.
Median Represents an inverse distribution function that assumes a continuous distribution model. It takes a numeric or date-time value and returns the middle value or an interpolated value that would be the middle value once the values are sorted.
Min Returns the minimum value of the provided expression.
Stddev Returns the sample standard deviation of the provided expression.
Sum Returns the sum of the values identified by the provided expression.
Spatial Extent Returns the spatial extent of a geometry.
Table 1: List of aggregate expression functions