the number of (objects)

This construct returns the number of objects in the current dataset or in the specified collection.

Purpose

You use this construct to count the number of objects of the specified type and return the total as a number.

Syntax

the number of <objects> [in <list>] [where <test>,*]

Description

You can use the optional in <list> clause to count the objects in a specific list. You can use one or more optional where clauses to apply additional conditions to the objects that are included in the returned count.

This construct cannot be used in the definitions part of the rule.

Example

The following condition is met if there are at least 6 vehicles:

if
    the number of vehicles is more than 5
then...