--On 8/15/08 6:03 PM -0400 Chang Chung wrote: > good point! but as shown below, you can make a view of multiple datasets > having the separate indexes, and where seems to be fine with this. > interesting. ran on sas 9.1.3 sp4 on windows. > /* make a view of two datasets appended */ > proc sql feedback; > drop view work.oneTwo; > create view oneTwo as > select * from one union select * from two > order by age; > quit; One thought on this--at least in my general approach to using views--is you probably want to avoid the ORDER BY statement--especially if it's the variable you're indexing on and you want to use a subset. For any amount of data above a trivial one, there's no sense in forcing the view to re-order th e data if it doesn't have to. Dave