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Here are some tips for How to share your SAS knowledge with your professional network.
Tips:Deduping using Proc Sort
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; run;
Submitted by Murphy Choy. Contact me at my Discussion Page.