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Need some help on an sql and left join subselect

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[QUOTE][u]Quote by: jmucchiello[/u][p][QUOTE][u]Quote by: cordiste[/u][p]I finally found the query I needed:

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

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[/p][/QUOTE]
If you care, that SQL will not work with MS SQL. Try:

[code]$sql = "SELECT p.id,p.name,p.short_description,p.price,p.download,i.pi_filename 
        FROM {$_TABLES['paypal_products']} AS p
	LEFT JOIN {$_TABLES['paypal_images']} AS i 
	ON i.pi_pid = p.id AND i.pi_img_num IN (SELECT MIN(pi_img_num) FROM {$_TABLES['paypal_images']} WHERE pi_img_num >= 1 AND pi_pid = p.id) 
	";
[/code]
[/p][/QUOTE]

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