From: | "Rafael Mora" <moraloco(at)gmail(dot)com> |
---|---|
To: | pgsql-php(at)postgresql(dot)org |
Subject: | Alphabetic Pager Class |
Date: | 2007-06-21 10:48:00 |
Message-ID: | 21509df10706210348t55fe6199n8ba21cb9b32780a3@mail.gmail.com |
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Thread: | |
Lists: | pgsql-php |
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 <dcastanos(at)androme(dot)es> 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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