\n (newline), 18
name
column, 4
database table, 4
rules, 4
name attribute
<input> tag, 107
<textarea> tag, 109
name validation, command-line phone number lookup program, 357
name.cgi, 106
namespace
BasicSession.pm, 256
item_details.cgi, 312
Quizzer.pm, 151
SmallAuction.pm, 204
soap_server.cgi, 301
new top-level window, creating, graphical phonebook application, 359
newline (\n), 18
NEXTKEY method, BasicSession.pm, 257, 261–262
No_Data subroutine, phonebook.cgi, 122–123
No_More_Questions subroutine, Quizzer.pm, 158, 161
nonword characters (\W), removing from string, 57
normalization
de-normalization, 14
First Normal Form, 11
key, eliminating data no dependent upon, 13–14
redundant data, eliminating, 12–13
repeating data, eliminating, 11–12
Second Normal Form, 11
Third Normal Form, 11
uniqueness, 12
NOT NULL clause, 31
NULL value, 5
number, column types related to, 5