SQL QUERY Question -- Find Dollar value of an Order without using AVG()

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SQL-Server-2005

I am trying to get average dollar value for Orders and getting it until I add the subquery below which is supposed to give me average dollar value for OrderItems as well. I am getting "Incorrect syntax near the keyword 'AS'". What is that I am not doing right? Thank you.

P.S. not all the Orders are in the ORDERITEMS table.

SQL

SELECT COUNT(Orders.orderid) / SUM(Inventory.price) AS Orders_Average
FROM  ORDERITEMS LEFT OUTER JOIN
               Inventory ON OrderItems.partid = Inventory.partid RIGHT OUTER JOIN
               Orders ON OrderItems.orderid = Orders.orderid
               
WHERE NOT EXISTS 
(SELECT *   
FROM  ORDERITEMS
WHERE OrderItems.orderid <> Orders.orderid
GROUP BY ORDERITEMS.orderid
HAVING COUNT(ORDERITEMS.orderid) / SUM(Inventory.price) AS OrderItems_Average )

Posted 17-Jan-13 19:35pm

7prince

Updated 17-Jan-13 19:53pm

sisir patro

v2

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7prince 18-Jan-13 13:05pm

I cahnged ny code to: How can I show "average dollar value for Orders" and "average dollar value for OrderItems" side by side in columns.

SELECT (COUNT(Orders.orderid) / SUM(Inventory.price)) AS Orders_Average
FROM ORDERITEMS LEFT OUTER JOIN
Inventory ON OrderItems.partid = Inventory.partid RIGHT OUTER JOIN
Orders ON OrderItems.orderid = Orders.orderid

WHERE NOT EXISTS
(SELECT *
FROM ORDERITEMS
WHERE OrderItems.orderid <> Orders.orderid
GROUP BY ORDERITEMS.orderid)

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Zafar248 · Answer 1 · 2013-01-17T19:58:00

Solution 1

you can not use alias in having clause. you should be getting it in the last line "AS OrderItems_Average".

Posted 17-Jan-13 19:58pm

Zafar248

sisir patro · Answer 2 · 2013-01-17T20:18:00

HI,

Change your code to :

SELECT (COUNT(Orders.orderid) / SUM(Inventory.price)) AS Orders_Average
FROM  ORDERITEMS LEFT OUTER JOIN
               Inventory ON OrderItems.partid = Inventory.partid RIGHT OUTER JOIN
               Orders ON OrderItems.orderid = Orders.orderid
               
WHERE NOT EXISTS 
(SELECT *   
FROM  ORDERITEMS
WHERE OrderItems.orderid <> Orders.orderid
GROUP BY ORDERITEMS.orderid)

NO need to define the having clause with aliase name.

Thanks