Hash Join is one of join used by Oracle server when we joine multiple table. Following link will give you a demo on Flash. This demo explains how Hash Join works in Oracle.
This demo was created by TomKyte from Oracle. I got this link from AskTom.
http://tinyurl.com/l2qsh
Alternatively, if you want "offline viewing" of this, you can download a .exe
file (about 1.8mb) that lets you play this whenever you want:
http://tinyurl.com/nyjro
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