Re: search/select case-insensitivly.

As long as I know, some databases will find John even if you ask for
JOHN.

If not, then here is your SELECT (for mySQL).

$sql = "SELECT * WHERE UPPER(name) = UPPER('$name')";

Your problem is solved now.

--
Maxim Maletsky
maxim(at)php(dot)net

www.PHPBeginner.com // where PHP Begins

Hervé Piedvache <herve(at)elma(dot)fr> wrote... :

> The best way is to always save data in your database in the same format ...
> upper or lower ... then create an index on your field classicaly ...
>
> CREATE INDEX ix_name ON mytable(name);
> SELECT name FROM mytable WHERE name = '" . strtolower($Name) ."';
>
> You will ever use the index ... and it's simple to implement ...
> You can also easily do an update of your database like :
> update mytable set name=lower(name);
> to get all the old data in the good format ...
> Do not forget to vacuum the table after that !
>
> Regards,
>
> Le Mardi 22 Octobre 2002 10:12, Andrew McMillan a écrit :
> > On Tue, 2002-10-22 at 17:01, Zhidian Du wrote:
> > > I want a PHP program to search case-insensitivly.
> > >
> > > for example:
> > > select Name from mytable where Name = '$Name';
> > >
> > >
> > > Here $Name is what users' input maybe JOHN, john. How to let it match
> > > John in table and find that record?
> >
> > Although you can simply do as another poster said and use the ILIKE
> > operator, there are a few things you may want to consider.
> >
> > You can also do something like:
> >
> > "SELECT name FROM mytable WHERE lower(name) = '" . strtolower($Name) .
> > "'; "
> >
> > This means that PostgreSQL will use an index, if there is an index on
> > lower(name):
> >
> > CREATE INDEX lcname ON mytable( lower(name) );
> >
> > This will give you the most efficient access if you have many records in
> > 'mytable', whereas ILIKE will require a full-table scan.
> >
> > Regards,
> > Andrew.
>
> --
> Hervé Piedvache
>
> Elma Ingénierie Informatique
> 6 rue du Faubourg Saint-Honoré
> F-75008 - Paris - France
> Tel. 33-144949901
> Fax. 33-144949902
>
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