Author Topic: Help constructing a query  (Read 283 times)

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Offline gungrave12Topic starter

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Help constructing a query
« on: February 21, 2010, 12:45:04 PM »
Hey guys I Really really need help with an sql query. Apparently I'm missing some big concept and can't figure it out.

There are three tables:

Customer(cust_num, phone, address)
Menu( food_name, food_type, price)
Orders( cust_num, food_name, quantity)

I need to find the phone number of each customer who ordered some food with food type 'soup' and ordered three hamburgers.

So, what I think I should be doing is: Query for customers who have ordered some soup (which I know how to do), then query for customers who have ordered three hamburgers (which I know how to do) and then inner join these two resulting tables.

I can't figure out how to inner-join two queries though =/. Is there a better way I should be doing this? Please help me, thank you!

Offline fenway

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Re: Help constructing a query
« Reply #1 on: February 23, 2010, 01:02:29 PM »
What do you have so far? EXISTS is an option as well.
:anim_rules: Seriously... if people don't start reading this before posting, I'm going to consider not answering at all.