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HASH JOIN - how does it work?

From: Nuno Guerreiro <nuno-v-guerreiro_at_telecom.pt>
Date: Tue, 02 Jun 1998 09:40:08 GMT
Message-ID: <3575c869.173707658@news.telecom.pt> 





Can anyone explain exactly what is a HASH JOIN and under which
circumstances does Oracle use it?



My guess is that Oracle uses it whenever it has to join information
from two large tables, but I would like to know how is the hash table
built as I don't have it in the documentation CD for Oracle Server
7.3.3.



Thanks,





Nuno Guerreiro

Received on Tue Jun 02 1998 - 04:40:08 CDT












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