Re: 4 join methods?

At 22:55 -0800 30/5/01, Rukmini Devi wrote:
>1. Equi-join 2. Self-join 3. Outer-join 4. Hash-join

Outer join is a logical type not an access method.

the four types of join that Oracle can use:

Nested Loops join
Sort Merge join (equi-join only)
Cluster join (equi-join on cluster key only) Hash join (equijoin, cost-based only)

Regards

Paul Miller

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Author: PD Miller
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