guess there is a good definition in the Help-File, which may give you a good starting point:
Set Analysis
Sets can be used in aggregation functions. Aggregation functions normally aggregate over the set of possible records defined by the current selection. But an alternative set of records can be defined by a set expression. Hence, a set is conceptually similar to a selection.
guess there is a good definition in the Help-File, which may give you a good starting point:
Set Analysis
Sets can be used in aggregation functions. Aggregation functions normally aggregate over the set of possible records defined by the current selection. But an alternative set of records can be defined by a set expression. Hence, a set is conceptually similar to a selection.
