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HASH JOIN - how does it work?

From: Nuno Guerreiro <nuno-v-guerreiro_at_telecom.pt>
Date: 1998/03/31
Message-ID: <3524c3c6.63821440@news.telecom.pt>#1/1 







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 Mar 31 1998 - 00:00:00 CST












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