Tech Tip: Named Selections - Differences between Sets & Named Selections
PRODUCT: 4D | VERSION: | PLATFORM:
Published On: December 10, 1999
A named selection is an ordered list of records - a set is not.
A named selection requires 4 bytes per record in the selection - a set requires one bit for each record in the table (irrespective of how many records are in the set).
A set can be saved to disk - a named selection cannot.
Sets support INTERSECTION, UNION and DIFFERENCE operations - named selections do not.