[mySQL] Co jest nie tak?, Zapytanie Opcje

[DannyM]

[SQL] pobierz, plaintext 
SELECT DISTINCT `cms_vm_product`.`product_id`, `cms_vm_product`.`product_name`, `cms_vm_product`.`product_s_desc`, `cms_vm_product`.`product_full_image`, `cms_vm_product_price`.`product_price`, `cms_vm_category`.`category_id`, `cms_vm_category_xref`.`category_parent_id` 
		FROM `cms_vm_category_xref`,`cms_vm_product`, `cms_vm_product_price`, `cms_vm_category`, `cms_vm_product_category_xref` 
		WHERE `cms_vm_category`.`category_id` = `cms_vm_product_category_xref` .`category_id` AND `cms_vm_product_category_xref`.`category_id` =`cms_vm_category_xref`.`category_parent_id` AND `cms_vm_product`.`product_id` = `cms_vm_product_price`.`product_id` AND `cms_vm_product`.`product_publish` ='Y' AND `cms_vm_product_category_xref`.`product_id` = `cms_vm_product`.`product_id` 
		ORDER BY `cms_vm_product`.`product_id` DESC
[SQL] pobierz, plaintext 

Mam sobie takie wywalonie a w bazie 30 produktow i wyswietla mi tylko 2.
Moze mi ktos to wytlumaczyc bo nie czyje sie dobrze w zapytaniach (IMG:http://forum.php.pl/style_emoticons/default/sad.gif)

[DannyM]

[SQL] pobierz, plaintext 
SELECT `cms_vm_product`.`product_id`, `cms_vm_product`.`product_name`, `cms_vm_product`.`product_s_desc`, `cms_vm_product`.`product_full_image`, `cms_vm_product_price`.`product_price`, `cms_vm_category`.`category_id`, `cms_vm_category_xref`.`category_parent_id` 
		FROM `cms_vm_category_xref`,`cms_vm_product`, `cms_vm_product_price`, `cms_vm_category`, `cms_vm_product_category_xref` 
 
		ORDER BY `cms_vm_product`.`product_id` DESC
[SQL] pobierz, plaintext 

Jak skasowalem kilka AND'ow to mi dubluje po kilka razy ten sam produkt
Moze celem wyjasnienia:

Plik ma generowac zawartosc wybranych czesci bazy do pliku XML
Moze gdzie jak sie zapetla dubluje?

Ten post edytował DannyM 16.11.2006, 15:23:32