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9.3

Inner join query, MySQL

Asked by Dennie in Databases Miscellaneous, MySQL Server

Tags: mysql, inner join

Hi,

My products have one or more types and each type can have attributes, stored in 3 seperate tables.

The entire product or only a specified type or attribute can be set to out of stock.

the tables are related as follows:
- products have an id
- product_type has an id and pid which referes to the product id
- product_type_attribute has tid which refers to product_type id

I'm looking for a single query that shows a products that has either the product, or an type or an attribute set to out of stock.

I manged to select the product and the product_type but how do I add the product_type_attribute table? This doesn't work:
INNER JOIN product_type_attribute a on a.tid = t.id
WHERE p.in_stock = 0 or t.in_stock = 0 or a.in_stock=0 
1:
2:
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SELECT p.id, p.name, p.modify_ts,  b.brand
FROM products p
INNER JOIN brands b ON p.brand_id = b.id
INNER JOIN product_type t on t.pid = p.id
WHERE p.in_stock = 0 or t.in_stock = 0
GROUP BY p.name
ORDER BY b.brand, p.name ASC
[+][-]10/22/09 04:33 AM, ID: 25632892Accepted Solution

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About this solution

Zones: Databases Miscellaneous, MySQL Server
Tags: mysql, inner join
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Solution Provided By: k_murli_krishna
Participating Experts: 1
Solution Grade: A
 
 
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