03-20-2012 07:28 AM
Following Ksharp's suggestion, an example of hash() solution on sorting:
if _n_=1 then do;
set have (obs=1);
dcl hash h(dataset: 'have',ordered:'a', multidata: 'yes');
03-21-2012 07:16 AM
Do a googling on 'SAS Hash', you will find tons of sugi papers on this topic, that is at least how I started. Plus SAS online documentation and practice, you will have a taste of it before you know it.
03-20-2012 10:09 AM
Another possibility is to have the PROC SORT procedure use another sort tool. A lot of mainframe shops do that with SyncSort.
For some actities, you can use PROC FORMAT to accomplish the goal of a SORT.
Note that all of these procedures may give you different results when there are ties on the sort keys.
This paper may be helpful
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