April 1999
Intermediate to advanced
584 pages
23h 17m
English
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Hash Joins
A hash join is a modified version of the merge join. Oracle uses a hash function on the join criteria to eliminate the need to sort each table. The overhead of the hash function is normally less than the time required to sort the tables.
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I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.