Case insensitive searches

Maybe not the fastest, but:

select some_field from table where lower(another_field) like
lower('%substring_entered_by_user%');

That will lower case the search field and item to do the match against.

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Aaron Holtz
ComNet Inc.
UNIX Systems Specialist
Email: aholtz@bright.net
"It's not broken, it just lacks duct tape."
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On Thu, 6 May 1999, Paulo Parola wrote:

Try:

select some_field
from table
where lower(another_field) like '%substring_entered_by_user%'

-----Original Message-----
From: Paulo Parola [SMTP:pgsql@brazilinfo.com]
Sent: Thursday, May 06, 1999 3:53 PM
To: pgsql-general
Subject: [GENERAL] Case insensitive searches

Hi,

When using mSQL I can perform case insensitive queries by using
statements
like below:

select some_field
from table
where another_field clike '%substring_entered_by_user%'

How should I do that with PostgreSQL? (I understand 'clike' is not a
standard SQL feature and there is no similar in PostgreSQL).

If I change the substring entered by the user, lets say for example
'more',
to the following form '[mM][oO][rR][eE]' would it work?

And if I have words with accents (lets say 'K�nstler') how should I
do to
return the same entries no matter if the user types the accent or
not? In
the previous case, the search should return the same values no
matter if the
user entered the word 'K�nstler' (with accent) or if he typed
'Kunstler'
(without accent).

TIA,
PAulo

On Thu, 6 May 1999, Michael J Davis wrote:

Try:

select some_field
from table
where lower(another_field) like '%substring_entered_by_user%'

-----Original Message-----
From: Paulo Parola [SMTP:pgsql@brazilinfo.com]
Sent: Thursday, May 06, 1999 3:53 PM
To: pgsql-general
Subject: [GENERAL] Case insensitive searches

Michael, I stuck with this format for awhile, in the interests of trying
to write generic code and then the '~*' operator was just too handy. ;-)

SELECT * FROM foo WHERE bar ~* 'kun';

Will return `Kunstler' from table `foo'...I don't know about the umlaut
though...

Cheers,
Tom

Hi,

When using mSQL I can perform case insensitive queries by using
statements
like below:

select some_field
from table
where another_field clike '%substring_entered_by_user%'

How should I do that with PostgreSQL? (I understand 'clike' is not a
standard SQL feature and there is no similar in PostgreSQL).

If I change the substring entered by the user, lets say for example
'more',
to the following form '[mM][oO][rR][eE]' would it work?

And if I have words with accents (lets say 'K���nstler') how should I
do to
return the same entries no matter if the user types the accent or
not? In
the previous case, the search should return the same values no
matter if the
user entered the word 'K���nstler' (with accent) or if he typed
'Kunstler'
(without accent).

TIA,
PAulo

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