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define table lookup and how may ways it can be
done...explian
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Answer Posted / vijaya mekala
Table lookup is a process of retriving information from
second dataset and add to first data set. different ways to
do look up.
1. data step with merge function.
2. set statement and Key option.
3. Proc sql into clause, inner join, subquery
4. proc format 5. conditional logics if, where, update
statements. 6. arrays with do loops 7. update statement.
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