Aggregation Operators

Table: OLAP Aggregation Operators describes the aggregation operators. The numeric data types are: BINARY_DOUBLE, BINARY_FLOAT, DECIMAL, FLOAT, INTEGER, and NUMBER

Table 6-1 OLAP Aggregation Operators

Operator	Data Types	Description
Average	Numeric	Adds data values, then divides the sum by the number of data values that were added together.
First Non-NA Data Value	All	The first real data value.
Hierarchical Average	Numeric	Adds data values, then divides the sum by the number of the children in the dimension hierarchy. Unlike `AVERAGE`, which counts only non-NA children, `HAVERAGE` counts all of the logical children of a parent, regardless of whether each child does or does not have a value.
Hierarchical First Member	All	The first data value in the hierarchy, even when that value is NA.
Hierarchical Last Member	All	The last data value in the hierarchy, even when that value is NA.
Hierarchical Weighted Average	Numeric	Multiplies non-NA child data values by their corresponding weight values, then divides the result by the sum of the weight values. Unlike `WAVERAGE`, `HWAVERAGE` includes weight values in the denominator sum even when the corresponding child values are NA. Identify the weight object in the Based On field.
Hierarchical Weighted First	Numeric	The first data value in the hierarchy multiplied by its corresponding weight value, even when that value is NA. Identify the weight object in the Based On field.
Hierarchical Weighted Last	Numeric	The last data value in the hierarchy multiplied by its corresponding weight value, even when that value is NA. Identify the weight object in the Based On field.
Last Non-NA Data Value	All	The last real data value.
Maximum	All	The largest data value among the children of each parent.
Minimum	All	The smallest data value among the children of each parent.
Nonadditive	All	Do not aggregate any data for this dimension. Use this keyword only in an operator variable. It has no effect otherwise.
Scaled Sum	Numeric	Adds the value of a weight object to each data value, then adds the data values. Identify the weight object in the Based On field.
Sum	Numeric	Adds data values. (Default)
Weighted Average	Numeric	Multiplies each data value by a weight factor, adds the data values, and then divides that result by the sum of the weight factors.
Weighted First	Numeric	The first non-NA data value multiplied by its corresponding weight value.
Weighted Last	Numeric	The last non-NA data value multiplied by its corresponding weight value.
Weighted Sum	Numeric	Multiplies each data value by a weight factor, then adds the data values.