Re: [GENERAL] SQL Regular expression

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От John M. Flinchbaugh
Тема Re: [GENERAL] SQL Regular expression
Дата
Msg-id Pine.LNX.4.10.9907142350520.7950-100000@butterfly.hjsoft.com
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Ответ на SQL Regular expression  ("Albert Chen" <chen6178@hotmail.com>)
Список pgsql-general
On Wed, 14 Jul 1999, Albert Chen wrote:
> I want to search my database table named ex,  whose the attribute is
> subject,
> and list the results that matches the keyword 'electric'.
> I run the SQL command: SELECT subject FROM ex WHERE subject='*electric*';

use one of the following:

select subject from ex where subject~'.*electric.*';

or

select subject from ex where subject like '%electric%';

the first uses postgresql's regular expressions, which are much like unix
regex.  the second uses the sql standard like clause.  this one will be
more portable to other dbms.

____________________}John Flinchbaugh{______________________
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|    glynis@netrax.net      http://www.hjsoft.com/~glynis/ |
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