Sorting the input data set and replacing it with the sorted data
set preserves both referential and general integrity constraints, as well
as any indexes that they might require. A sort that creates a new data set
will not preserve any integrity constraints or indexes. For more information
about implicit replacement, explicit replacement, and no replacement with
and without the OUT= option, see Output Data Set.
For more information about integrity constraints, see the chapter on SAS data files in
SAS Language Reference: Concepts.
Copyright © 2010 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
