Re: [PHP-DB] MySQL SQL Query Help

2006-11-13 Thread Chris

Peter Beckman wrote:

On Mon, 13 Nov 2006, [EMAIL PROTECTED] wrote:


Actually, that should not work, it should give you an error.

This should work:

SELECT `fkid`,max(`foo`) as foo,`bar` FROM `test2` GROUP BY `fkid`  
ORDER BY `bar` ASC


Yes, but if the data is in a different order that fails and doesn't 
maintain row order:


mysql> create temporary table test2 (id tinyint,fkid tinyint, foo 
smallint, bar varchar(20));
mysql> insert into test2 values (1,1,34,'red'), (2,1,345,'yellow'), 
(3,2,345,'brown'), (4,2,3459,'green');

mysql> select * from test2;
+--+--+--++
| id   | fkid | foo  | bar|
+--+--+--++
|1 |1 |   34 | red|
|2 |1 |  345 | yellow |
|3 |2 |  345 | brown  |
|4 |2 | 3459 | green  |
+--+--+--++
mysql> SELECT `fkid`,max(`foo`) as foo,`bar` FROM `test2` GROUP BY 
`fkid`  ORDER BY `bar` ASC;

+--+--+---+
| fkid | foo  | bar   |
+--+--+---+
|2 | 3459 | brown |
|1 |  345 | red   |
+--+--+---+
2 rows in set (0.00 sec)

Notice how 3459 is supposed to be green but reports brown, and 345 should
be yellow but reports red?

Any other solutions that maintain row integrity?


You might have to go a subquery.

(I'm not great at subqueries so there would have to be a better way to 
write this anyway).


This works in postgresql:

select fkid, foo, bar from test2 t2 where (select max(foo) from test2 t1 
where t1.fkid=t2.fkid)=foo;



but mysql won't let you reference the same table inside & outside:

mysql> select fkid, foo, bar from test2 t2 where (select max(foo) from 
test2 t1 where t1.fkid=t2.fkid)=foo;

ERROR 1137 (HY000): Can't reopen table: 't2'

http://dev.mysql.com/doc/refman/5.0/en/subqueries.html

The mysql mailing list might have better ideas..

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Re: [PHP-DB] MySQL SQL Query Help

2006-11-13 Thread Peter Beckman

On Mon, 13 Nov 2006, [EMAIL PROTECTED] wrote:


Actually, that should not work, it should give you an error.

This should work:

SELECT `fkid`,max(`foo`) as foo,`bar` FROM `test2` GROUP BY `fkid`  ORDER BY 
`bar` ASC


Yes, but if the data is in a different order that fails and doesn't maintain 
row order:

mysql> create temporary table test2 (id tinyint,fkid tinyint, foo smallint, 
bar varchar(20));
mysql> insert into test2 values (1,1,34,'red'), (2,1,345,'yellow'), 
(3,2,345,'brown'), (4,2,3459,'green');
mysql> select * from test2;
+--+--+--++
| id   | fkid | foo  | bar|
+--+--+--++
|1 |1 |   34 | red|
|2 |1 |  345 | yellow |
|3 |2 |  345 | brown  |
|4 |2 | 3459 | green  |
+--+--+--++
mysql> SELECT `fkid`,max(`foo`) as foo,`bar` FROM `test2` GROUP BY `fkid`  
ORDER BY `bar` ASC;
+--+--+---+
| fkid | foo  | bar   |
+--+--+---+
|2 | 3459 | brown |
|1 |  345 | red   |
+--+--+---+
2 rows in set (0.00 sec)

Notice how 3459 is supposed to be green but reports brown, and 345 should
be yellow but reports red?

Any other solutions that maintain row integrity?

Beckman


Miguel Guirao wrote:

select max(bar) from mytable where unique fkid order by bar asc

as far as I remember!!

-Original Message-
From: Peter Beckman [mailto:[EMAIL PROTECTED]
Sent: Lunes, 13 de Noviembre de 2006 04:59 p.m.
To: PHP-DB Mailing List
Subject: [PHP-DB] MySQL SQL Query Help


I have a table:

id fkid   foobar
1  1  345yellow
2  1  34 red
3  2  3459   green
4  2  345brown

I want to select the largest value of "foo" for a unique fkid, and return
bar, the results ordered by bar.  In this case, 345 is the largest value of
foo for fkid 1, and 3459 is the largest for fkid 2.  "green" comes before
"yellow."  My desired result set would be:

 fkid   foobar
 2  3459   green
 1  345yellow

How would I write that in SQL?  fkid and foo are ints, bar is a varchar.

Beckman
---
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[EMAIL PROTECTED] http://www.purplecow.com/
---




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---
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[EMAIL PROTECTED] http://www.purplecow.com/
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Re: [PHP-DB] Generating pages with full stories

2006-11-13 Thread J R

Here's how you should do this (IMHO):

On you front page make a sql query say you want to display the latest 3
events. Your query probably will look like this:

select event_table_id, title from event_table order by date_created desc
limit 3;

then from the result make a while or for loop (for example your result is
stored in an array $aResult)

foreach ($aResult as $value) {
   echo ''.$value['title'].';
}


Then on your eventFullSyories.php just query the event_table for that
eventId and display the event full story.


hth,
john

On 11/14/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]>
wrote:


I'd answer question number 3.

Well, it is just about an update section that the administrators will
input on the database for updates and event for a company, saying the
website has an updated page or simply putting an "event" for the public to
know.

Right now, I want to know how get a URL like this:

http://www.myhomepage.com/thispage.php?variable1=value_X&?var2=val_Y

Using anchor (link) tags, not from form tags.

> Yes...
>
> But, the experts on this list need more info in order to help you out.
>
> 1. Where are the stories going to come from? If you plant to take news
> stories from other sites and use them on your own site, there are
> serious legal issues involved.
>
> 2. If you want to write the stories yourself, or invite visitors to
> write your stories, then you probably want a simple content management
> system using PHP and MySQL. There are a lot of them about. Google or ask
> for recommendations.
>
> 3. If you'd prefer to make the site yourself in order to learn PHP +
> MySQL programming, you can find lots of tutorials. Google PHP Tutorials
> and look around.
>
> Good luck,
>
> Jeffrey
>
>
> [EMAIL PROTECTED] wrote:
>> I've got a website using PHP and MySQL. I would like to make a "news
>> preview" on the webpage's frontpage with a link to the full story.
>>
>> Is it possible to use one (1) .PHP file to generate full stories, with
>> MySQL involved?
>>
>> I'm just a newcomer in the world of PHP but I am doing my best in
>> reading
>> materials for PHP.
>>
>> Thanks in advance.
>>
>

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Re: [PHP-DB] Generating pages with full stories

2006-11-13 Thread dancemaniac
I'd answer question number 3.

Well, it is just about an update section that the administrators will
input on the database for updates and event for a company, saying the
website has an updated page or simply putting an "event" for the public to
know.

Right now, I want to know how get a URL like this:

http://www.myhomepage.com/thispage.php?variable1=value_X&?var2=val_Y

Using anchor (link) tags, not from form tags.

> Yes...
>
> But, the experts on this list need more info in order to help you out.
>
> 1. Where are the stories going to come from? If you plant to take news
> stories from other sites and use them on your own site, there are
> serious legal issues involved.
>
> 2. If you want to write the stories yourself, or invite visitors to
> write your stories, then you probably want a simple content management
> system using PHP and MySQL. There are a lot of them about. Google or ask
> for recommendations.
>
> 3. If you'd prefer to make the site yourself in order to learn PHP +
> MySQL programming, you can find lots of tutorials. Google PHP Tutorials
> and look around.
>
> Good luck,
>
> Jeffrey
>
>
> [EMAIL PROTECTED] wrote:
>> I've got a website using PHP and MySQL. I would like to make a "news
>> preview" on the webpage's frontpage with a link to the full story.
>>
>> Is it possible to use one (1) .PHP file to generate full stories, with
>> MySQL involved?
>>
>> I'm just a newcomer in the world of PHP but I am doing my best in
>> reading
>> materials for PHP.
>>
>> Thanks in advance.
>>
>

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Re: [PHP-DB] MySQL SQL Query Help

2006-11-13 Thread [EMAIL PROTECTED]
Actually, that should not work, it should give you an error. 

This should work:

SELECT `fkid`,max(`foo`) as foo,`bar` FROM `test2` GROUP BY `fkid`  ORDER BY 
`bar` ASC



Miguel Guirao wrote:
> select max(bar) from mytable where unique fkid order by bar asc
>
> as far as I remember!!
>
> -Original Message-
> From: Peter Beckman [mailto:[EMAIL PROTECTED]
> Sent: Lunes, 13 de Noviembre de 2006 04:59 p.m.
> To: PHP-DB Mailing List
> Subject: [PHP-DB] MySQL SQL Query Help
>
>
> I have a table:
>
> id fkid   foobar
> 1  1  345yellow
> 2  1  34 red
> 3  2  3459   green
> 4  2  345brown
>
> I want to select the largest value of "foo" for a unique fkid, and return
> bar, the results ordered by bar.  In this case, 345 is the largest value of
> foo for fkid 1, and 3459 is the largest for fkid 2.  "green" comes before
> "yellow."  My desired result set would be:
>
>  fkid   foobar
>  2  3459   green
>  1  345yellow
>
> How would I write that in SQL?  fkid and foo are ints, bar is a varchar.
>
> Beckman
> ---
> Peter Beckman  Internet Guy
> [EMAIL PROTECTED] http://www.purplecow.com/
> ---
>
>   

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RE: [PHP-DB] MySQL SQL Query Help

2006-11-13 Thread Miguel Guirao


select max(bar) from mytable where unique fkid order by bar asc

as far as I remember!!

-Original Message-
From: Peter Beckman [mailto:[EMAIL PROTECTED]
Sent: Lunes, 13 de Noviembre de 2006 04:59 p.m.
To: PHP-DB Mailing List
Subject: [PHP-DB] MySQL SQL Query Help


I have a table:

id fkid   foobar
1  1  345yellow
2  1  34 red
3  2  3459   green
4  2  345brown

I want to select the largest value of "foo" for a unique fkid, and return
bar, the results ordered by bar.  In this case, 345 is the largest value of
foo for fkid 1, and 3459 is the largest for fkid 2.  "green" comes before
"yellow."  My desired result set would be:

 fkid   foobar
 2  3459   green
 1  345yellow

How would I write that in SQL?  fkid and foo are ints, bar is a varchar.

Beckman
---
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[EMAIL PROTECTED] http://www.purplecow.com/
---

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Re: [PHP-DB] MySQL SQL Query Help

2006-11-13 Thread Niel Archer
Hi 

Try:

SELECT fkid, MAX(foo), bar FROM table GROUP BY fkid ORDER BY bar DESC

Niel

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[PHP-DB] MySQL SQL Query Help

2006-11-13 Thread Peter Beckman

I have a table:

id fkid   foobar
1  1  345yellow
2  1  34 red
3  2  3459   green
4  2  345brown

I want to select the largest value of "foo" for a unique fkid, and return
bar, the results ordered by bar.  In this case, 345 is the largest value of
foo for fkid 1, and 3459 is the largest for fkid 2.  "green" comes before
"yellow."  My desired result set would be:

fkid   foobar
2  3459   green
1  345yellow

How would I write that in SQL?  fkid and foo are ints, bar is a varchar.

Beckman
---
Peter Beckman  Internet Guy
[EMAIL PROTECTED] http://www.purplecow.com/
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Re: [PHP-DB] Simple question on auto_increment

2006-11-13 Thread mario
WOW! perfect, thanks a lot 
mario

On Mon, 2006-11-13 at 16:16 -0500, Brad Bonkoski wrote:
> mario wrote:
> > Hello,
> >
> > really a mysql question. Pls. help anyway.
> >  
> > Is there a simple, common way to implemt the following:
> > Say I have a table with a id autoincrement field.
> > I wish to insert a record but just ist id value, get back the id value,
> > use it to update the record.
> >
> > Do I need three separate mysql queries? Is there some trick I may use?
> > Thanks Regards mario
> >
> >   
> www.php.net/mysql_insert_id --or-- www.php.net/mysqli_insert_id
> 
> (of course for your example to work all the other fields would have to 
> be nullable)
> 
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Re: [PHP-DB] Simple question on auto_increment

2006-11-13 Thread Brad Bonkoski

mario wrote:

Hello,

really a mysql question. Pls. help anyway.
 
Is there a simple, common way to implemt the following:

Say I have a table with a id autoincrement field.
I wish to insert a record but just ist id value, get back the id value,
use it to update the record.

Do I need three separate mysql queries? Is there some trick I may use?
Thanks Regards mario

  

www.php.net/mysql_insert_id --or-- www.php.net/mysqli_insert_id

(of course for your example to work all the other fields would have to 
be nullable)


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[PHP-DB] Simple question on auto_increment

2006-11-13 Thread mario
Hello,

really a mysql question. Pls. help anyway.
 
Is there a simple, common way to implemt the following:
Say I have a table with a id autoincrement field.
I wish to insert a record but just ist id value, get back the id value,
use it to update the record.

Do I need three separate mysql queries? Is there some trick I may use?
Thanks Regards mario

-- 
mario <[EMAIL PROTECTED]>

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Re: [PHP-DB] Generating pages with full stories

2006-11-13 Thread Jeffrey

Yes...

But, the experts on this list need more info in order to help you out.

1. Where are the stories going to come from? If you plant to take news 
stories from other sites and use them on your own site, there are 
serious legal issues involved.


2. If you want to write the stories yourself, or invite visitors to 
write your stories, then you probably want a simple content management 
system using PHP and MySQL. There are a lot of them about. Google or ask 
for recommendations.


3. If you'd prefer to make the site yourself in order to learn PHP + 
MySQL programming, you can find lots of tutorials. Google PHP Tutorials 
and look around.


Good luck,

Jeffrey


[EMAIL PROTECTED] wrote:

I've got a website using PHP and MySQL. I would like to make a "news
preview" on the webpage's frontpage with a link to the full story.

Is it possible to use one (1) .PHP file to generate full stories, with
MySQL involved?

I'm just a newcomer in the world of PHP but I am doing my best in reading
materials for PHP.

Thanks in advance.



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[PHP-DB] Generating pages with full stories

2006-11-13 Thread dancemaniac
I've got a website using PHP and MySQL. I would like to make a "news
preview" on the webpage's frontpage with a link to the full story.

Is it possible to use one (1) .PHP file to generate full stories, with
MySQL involved?

I'm just a newcomer in the world of PHP but I am doing my best in reading
materials for PHP.

Thanks in advance.

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