I tried a data step with two where statements and realised that only the second where condition is affecting the output - see sample code below:
data result_2where_conditions;
set class_birthdate;
where Registration = 'C';
where Age = 12;
run;
Can somebody shed some light on why this happens?
Thanks heaps.
Only one WHERE statement can take effect, the second overrides the first. Combine both conditions in one statement with AND.
Only one WHERE statement can take effect, the second overrides the first. Combine both conditions in one statement with AND.
While this is valid and works, I would not even teach it, as sooner or later someone comes up with
where condition1;
/* 1000 lines of data step code */
where same and condition2;
/* another 1000 lines of data step code */
where same and condition3;
which is horrible to debug and maintain.
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