histogram for character string values

From: Mikito Harakiri <mikharakiri_at_yahoo.com>
Date: 7 Mar 2002 11:54:10 -0800
Message-ID: <bdf69bdf.0203071154.61c2d815_at_posting.google.com>

I'm looking for a reference how histogram works. Questions:

1. Since histogram is a table with floating point values, I wonder how does it handle database character types. What is a function used to map a character string to a number?
2. Does the above function means that there is a metrics on character strings?

Received on Thu Mar 07 2002 - 20:54:10 CET