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Home > Forums > Programmers > DBMS Packages > Microsoft: Access Queries and JET SQL Forum

MS Access SQL Subquery Question

thread701-1682517
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beeboroach (TechnicalUser)
7 May 12 20:11
I need to use a subquery to create a list that shows the description and price for all products that were ever ordered. It should not show products that were never ordered.

This is what my relationships look like: http://s15.postimage.org/lfxn95hvt/test.png

Here's what I started with:
SELECT PRODUCT.Product_Description, PRODUCT.Standard_Price
FROM PRODUCT;

How do I make a subquery to exclude those that don't have an order id or..?
beeboroach (TechnicalUser)
7 May 12 20:27
NVM, I think I got it...

SELECT PRODUCT.Product_Description, PRODUCT.Standard_Price
FROM PRODUCT INNER JOIN Order_line ON PRODUCT.Product_ID = Order_line.Product_ID
WHERE PRODUCT.Product_ID IN
(
SELECT Order_line.Product_ID
FROM Order_line
Where Order_line.Product_ID=PRODUCT.Product_ID
)

Needed to refresh on a lot of subquery info.
PHV (MIS)
7 May 12 21:01
Why a subquery ?
SELECT DISTINCT PRODUCT.Product_Description, PRODUCT.Standard_Price
FROM PRODUCT INNER JOIN Order_line ON PRODUCT.Product_ID = Order_line.Product_ID

Hope This Helps, PH.
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beeboroach (TechnicalUser)
7 May 12 21:02
Sorry if I didn't clarify, I was just trying to see how to use subqueries in that instant. I know how to use joins, thanks for your input though!
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