Subtraction Operator

An operator that creates a new dataset from multiple datasets by including data that is only in the first dataset but not in any of the other datasets, as in the following illustration:

(The subtraction operation)

The dataset from which the subtraction is made (the "first" dataset) is that which is transferred to the topmost input port of the operator.

Group: Additional Operators

Model level: iView

Structure

The following table describes the properties and attributes of this model element:

Group	Property	Attribute	Description
Subtraction Operator	Name		Label for the operator
Table at bottom	(Data Type)		Type of data in field
	Field		Field that serves as the basis for the subtraction operation
	Key		Checkbox for selecting the Field

Note Note

Be sure to connect the dataset from which the subtraction occurs to the top port of the Subtraction operator.

(Connect main dataset to top port)

In this example, the dataset coming from the Flight Getlist data service will be the first in the subtraction equation, so that all other data will be subtracted from it.

End of the note.