Обсуждение: Case sensitivity

 Hi,
  Well while moving from Mysql to POstgresql this was one more difference
: Case Sensitivity.
 The problem is in this query
 select * from table where name='Word'
 select * from table where name='word'

 Mysql  treated both as same but postgres does not..i appreciate that
 it is good but is there a way that 'Word' can be matched with 'word'?
 i mean my queries can specify whether to be case sensitive or not.
 is there any such provision in postgres?
 or is it always case sensitive?
 thanks
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Varun
It is easier to write an incorrect program than understand a correct one

Ok the way around this is

SELECT * FROM table WHERE LOWER(name) = LOWER('Word');
SEELCT * FROM table WHERE UPPER(name) = UPPER('Word');

Note that if you have indexes on these fields then they will not work when
upper and lower are used.

To use an index create an index on upper or lower name depending upon what
you want to use

HTH

Darren Ferguson

On Thu, 20 Jun 2002, Varun Kacholia wrote:

>  Hi,
>   Well while moving from Mysql to POstgresql this was one more difference
> : Case Sensitivity.
>  The problem is in this query
>  select * from table where name='Word'
>  select * from table where name='word'
>
>  Mysql  treated both as same but postgres does not..i appreciate that
>  it is good but is there a way that 'Word' can be matched with 'word'?
>  i mean my queries can specify whether to be case sensitive or not.
>  is there any such provision in postgres?
>  or is it always case sensitive?
>  thanks
>

--
Darren Ferguson

On Thu, Jun 20, 2002 at 07:53:06PM +0530, Varun Kacholia wrote:
>  Hi,
>   Well while moving from Mysql to POstgresql this was one more difference
> : Case Sensitivity.
>  The problem is in this query
>  select * from table where name='Word'
>  select * from table where name='word'
>
>  Mysql  treated both as same

Really!?  Wow.  Is there a way to differentiate 'Word' from 'word',
then?  (I mean, LeBlanc and Leblanc are not the same, when you're
addressing people.  And if you think the difference isn't important,
you've never been to Acadia!)

>  it is good but is there a way that 'Word' can be matched with 'word'?

Sure.  Use ILIKE:

    SELECT * FROM table WHERE name ILIKE 'word';

A
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