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Go Back  dBforums > Database Server Software > MySQL > list products of the top 5 users with the highest number of products (was "Query")

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Old 10-23-07, 10:24
muscailie muscailie is offline
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Question list products of the top 5 users with the highest number of products (was "Query")

Hello, i`m trying since morning to get a result.

I have a users table and a table which holds products for selling..
Each user has the option to mark several products as 'special'.

i need a list which contains the name of the 'special' products which belong to the first 5 users who have the highest number of products.

users(user_id,user_name)
products(product_name,product_special,user_id)

select count(user_id),user_name as no
from users
natural join products
order by no desc
limit 5 -> this query shows the first 5 users which have the most products

select product_name,user_name
natural join users
where product_special='1' -> this query shows all the 'special' products

I need the result of the two queries combined somehow.

thanks!
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Old 10-23-07, 10:56
r937 r937 is offline
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Join Date: Apr 2002
Location: Toronto, Canada
Posts: 13,556
Code:
select products.product_name , products.user_id from users as T inner join products on products.user_id = T.user_id and products.product_special = 1 where ( select count(*) from ( select user_id , count(*) as productcount from products group by user_id ) as c where productcount > ( select count(*) from products where user_id = T.user_id ) ) < 5
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