Re: 4 join methods?

At 9:07 -0800 31/5/01, Mogens Nørgaard wrote:
>There is certainly something new called an index join around in 8i.

An index join is a hash join on 2 or more indexes which between them contain all the columns required to fulfill the query. It is new to 8i, and is considered to be an access pathl but strangely is not considered to be a join method; probably because it is a hybrid of the hash join using indices only.

Regards

Paul Miller

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Author: PD Miller
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