"Jim C. Nasby" <[EMAIL PROTECTED]> writes:

> Well, every other database I've used can do index covering, which means
> index scans *are* faster.

Still not necessarily true. In a case like this it would still be random
access which would be slower than sequential access.

Though Oracle is capable of taking the best of both worlds and doing a hash
join but taking the data from sequentially reading the index instead of the
table.

-- 
greg


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