Simple hash lookup

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Simple, basic syntax for SAS lookup

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  1. data results;
  2. if _n_=1 then do;
  3. set lookup_file(keep=id); ** Read in the variable properties;
  4. declare hash look(dataset: "lookup_file");
  5. look.definekey("id");
  6. look.definedata("name");
  7. look.definedone();
  8. end;
  10. set big_data;
  11. if look.find()=0 then output;
  12. run;

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