Re: database question

\S refers to a non whitespace character.

In the following: select whatever from articles where textlines regexp "^\Sbingo\S$" what does \S means? py ----- Original Message ----- From: "Jon Farmer" <jonfarmer@enta.net> To: "Warren Vail" <warren@availabletech.com>; "Michael Hall" <admin@openlearningcommunity.org>; "PHP List" <php-general@lists.php.net> Sent: Thursday, November 29, 2001 9:54 AM Subject: Re: [PHP] database question

Actually the sql statement you want is select whatever from articles where textlines regexp "^\Sbingo\S$" regards Jon -- Jon Farmer Systems Programmer, Entanet www.enta.net Tel 01952 428969 Mob 07763 620378 PGP Key available, send email with subject: Send PGP Key ----- Original Message ----- From: "Warren Vail" <warren@availabletech.com> To: "Michael Hall" <admin@openlearningcommunity.org>; "PHP List" <php-general@lists.php.net> Sent: Thursday, November 29, 2001 2:57 PM Subject: RE: [PHP] database question Try; SELECT whatever FROM articles WHERE textlines LIKE "%searchword%" Two warnings; 1) This will force a "table scan" (the contents of each row in the entire table because there can be no index to support faster searching of

contents

that float in the column) which will be very slow on a large database

(even

a medium size one). 2) This will also find words that exist inside other words. (ie the word "ward" exists inside "toward") If you try to solve this by imbedding

blanks

between the wildcard (%) and the text, you will probably not be able to

find

the word at the end of a line, or just prior to a comma or period. I also believe there may be a way to make the search case insensitive,

look

for something like a " WHERE tolower(textlines) LIKE ..." to force the column values to be all lower case and make sure your search values are

all

lower case as well. Good luck, Warren Vail -----Original Message----- From: Michael Hall [mailto:admin@openlearningcommunity.org] Sent: Thursday, November 29, 2001 2:21 PM To: PHP List Subject: [PHP] database question How can I search a MySQL database field that contains sentences (VARCHAR datatype) or entire texts (TEXT datatype) for single words? Let's say I want to search 100 articles stored in a database field as TEXT for the word "bingo", is there any SQL or PHP way of doing that? Mick -- ################################ Michael Hall admin@openlearningcommunity.org m.hall@latis.net.au http://openlearningcommunity.org -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net For additional commands, e-mail: php-general-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net For additional commands, e-mail: php-general-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net For additional commands, e-mail: php-general-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net

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-- Jim Musil --------- Multimedia Programmer Nettmedia ------------- 212-629-0004 jim@nettmedia.com