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Tips:Deduping using Proc Sort

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You can easily deduplicate records based on specific keys using PROC SORT by using the NODUPKEY option. Please note that the deduplication only occurs for the keys defined and not for any other variables.

proc sort data = <data> nodupkey;
    by key1 key2 ... keyN;

....see also

Submitted by Murphy Choy. Contact me at my Discussion Page.