Alphabetic Pager Class

"Rafael Mora" <[email protected]>
Newsgroups gmane.comp.db.postgresql.php
Message-ID <[email protected]>
Hi Dani!!

like

SELECT a.COUNT(field), b.COUNT(field),.... FROM table a, table b, table c,
.....
WHERE  UPPER( a.field )  LIKE UPPER( 'A%' ) AND
UPPER( b.field )  LIKE UPPER( 'B%' )  AND
.
.
.
.

I think you should change the AND for OR, 'cuz there you can get something
anyways even if you dont have a letter on the table!!




What do u think?
(Q t parece?)

Regards (Saludos)
Rafa
La Victoria, Venezuela



 On 6/21/07, Dani Castaños <[email protected]> wrote:
>
> Hello!
>
> I'm trying to build an alphabetic pager class. For instance, an address
> book ordered by the Last Name where only results begining with A are
> shown, and A - B - C - D - ... links below to change the letter which
> i'm filtering for.
> The point is I don't want to have enabled those links wich have no
> occurrences in them. So, I'm wondering which is the best way to do the
> query.
>
> My first thought to know how many results are there for each, is to do
> something like:
> SELECT COUNT(field) FROM table WHERE UPPER( field )  LIKE UPPER( 'A%' );
> SELECT COUNT(field) FROM table WHERE UPPER( field )  LIKE UPPER( 'B%' );
> SELECT COUNT(field) FROM table WHERE UPPER( field )  LIKE UPPER( 'C%' );
> ...
> and so on. But obviously, it is not an effcient way to do this.
> Is it possible to reduce this to only one query??
>
> Thank you in advance.
>
> Dani
>
>
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