example...
Will...
select column1, rrn(a)
from file1 a
where column1 = test
order by rrn(a)
be more resource intensive than...
select column1
from file1 a
where column1 = test
order by rrn(a)
Will...
select column1, rrn(a)
from file1 a
where column1 = test
order by rrn(a)
be more resource intensive than...
select column1
from file1 a
where column1 = test
order by rrn(a)
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