Like this?
data MATCHED UNMATCHED;
if 0 then set SMALL_DATA_SET;
if _N_ = 1 then do;
declare hash HASH_NAME(dataset: "SMALL_DATA_SET", multidata: 'y');
HASH_NAME.defineKey("YOUR_KEY_VARIABLE");
HASH_NAME.defineData (ALL:'YES');
HASH_NAME.defineDone();
end;
set BIG_DATA_SET;
if HASH_NAME.find()=0 then output MATCHED;
else output UNMATCHED;
run;
Do you really need definedata() ?
Like this?
data MATCHED UNMATCHED;
if 0 then set SMALL_DATA_SET;
if _N_ = 1 then do;
declare hash HASH_NAME(dataset: "SMALL_DATA_SET", multidata: 'y');
HASH_NAME.defineKey("YOUR_KEY_VARIABLE");
HASH_NAME.defineData (ALL:'YES');
HASH_NAME.defineDone();
end;
set BIG_DATA_SET;
if HASH_NAME.find()=0 then output MATCHED;
else output UNMATCHED;
run;
Do you really need definedata() ?
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