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Hello,

Here is my code


I need the same request with i.pi_img_num >=1 but I would to limit the result to 1 raw.
If i.pi_img_num = 1, it's ok stop here, or if i.pi_img_num = 2 ok stop there...

I read that I must include a subselect but do not succedd yet. Any help would be appreciated.

Thanks,

::Ben

---

I'm available to customise your themes or plugins for your Geeklog CMS

Can you be more specific? Are you trying to get a random image from the set of images associated with each product? I'm not really understanding what you mean by "but I would to limit the result to 1 raw. " OR "If i.pi_img_num = 1, it's ok stop here, or if i.pi_img_num = 2 ok stop there".

Can you create a few "fake" table listings and explain what you want to output:



What is the output you are expecting?

The actual code give me each product and the associated image when pi_img_num=1.
Like this I can print a list of products with only the first image for each product.


If I delete this image, then I would like my request to give me, if the image exist, the next available one for the product (pi_img_num=2). So, there is still one image per produt on the main list.


Thank you for your help;

::Ben

---

I'm available to customise your themes or plugins for your Geeklog CMS

$sql = "SELECT p.id,p.name,p.short_description,p.price,p.download,i.pi_filename
FROM {$_TABLES['paypal_products']} AS p
LEFT JOIN {$_TABLES['paypal_images']} AS i
ON i.pi_pid = p.id AND i.pi_img_num = 1
";


I would try something like this (I believe this will work it has been a while for me with sub queries).

SELECT p.id,p.name,p.short_description,p.price,p.download,(SELECT i.pi_filename FROM {$_TABLES['paypal_images']} AS i WHERE p.id = i.pi_id ORDER BY pi_img_num LIMIT 1) pi_filename
FROM {$_TABLES['paypal_products']} AS p

This should return all items which have at least 1 image. Sub queries can reference the outer query and be located either in the select or where clause.

Search for "subquery" on the MySQL site for more information (I would have included the url but the post was flagged as SPAM).

---

One of the Geeklog Core Developers.

I finally found the query I needed:



maybe there is several approch but this one get products from database only once with no image if there is no image available or the first one if one or more are available.

Thanks.

::Ben

---

I'm available to customise your themes or plugins for your Geeklog CMS

If you care, that SQL will not work with MS SQL. Try:

Thank you Joe for this. :chestslam:

::Ben

---

I'm available to customise your themes or plugins for your Geeklog CMS