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Oracle in a Nutshell
book

Oracle in a Nutshell

by Rick Greenwald, David C. Kreines
December 2002
Intermediate to advanced content levelIntermediate to advanced
928 pages
85h 29m
English
O'Reilly Media, Inc.
Content preview from Oracle in a Nutshell

SOUNDEX

SOUNDEX (string)

Returns a string of digits that represents the phonetic pronunciation of string. Using SOUNDEX can make it easier to search for a given string, because you don’t need to spell it correctly in order to get a match.

Use the following steps to derive the output string:

  1. Retain the first letter of the string.

  2. Remove all occurrences of the following letters: a, e, h, i, o, u, w, y.

  3. Replace any remaining letters with digits, as shown in Table 8-1.

  4. Truncate the resulting string to four characters in length.

Table 8-1. SOUNDEX letter-to-digit correspondence

Letters

SOUNDEX digit

b, f, p, v

1

c, g, j, k, q, s, x, z

2

d, t

3

l

4

m, n

5

r

6

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Publisher Resources

ISBN: 0596003366Errata Page