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See more: SQL-server-2005
How can combine the secon query below into the first one using subquery? Thanks.
SELECT  SUM(ORDERITEMS.qty*INVENTORY.PRICE) / COUNT(DISTINCT ORDERS.ORDERID) AS 'Orders_Average'
    AS 'OrderItems_Average'
  FROM  ORDERITEMS LEFT OUTER JOIN
               INVENTORY ON ORDERITEMS.PARTID = INVENTORY.PARTID RIGHT OUTER JOIN
               ORDERS ON ORDERITEMS.ORDERID = ORDERS.ORDERID
 
           UNION ALL 
   
               SELECT  SUM(ORDERITEMS.qty*INVENTORY.PRICE) / COUNT(DISTINCT ORDERITEMS.ORDERID) AS 'OrderItems_Average'
   AS 'OrderItems_Average'
  FROM  ORDERITEMS LEFT OUTER JOIN
               INVENTORY ON ORDERITEMS.PARTID = INVENTORY.PARTID RIGHT OUTER JOIN
               ORDERS ON ORDERITEMS.ORDERID = ORDERS.ORDERID
Posted 19-Jan-13 20:31pm
7prince409
Edited 19-Jan-13 20:33pm
8.2K
v3
Comments
Tharaka MTR at 20-Jan-13 3:01am
   
please specify your output. What do you mean by combine?
7prince at 20-Jan-13 11:37am
   
adding this query: SELECT SUM(ORDERITEMS.qty*INVENTORY.PRICE) / COUNT(DISTINCT ORDERITEMS.ORDERID) AS 'OrderItems_Average'
AS 'OrderItems_Average'
FROM ORDERITEMS LEFT OUTER JOIN
INVENTORY ON ORDERITEMS.PARTID = INVENTORY.PARTID RIGHT OUTER JOIN
ORDERS ON ORDERITEMS.ORDERID = ORDERS.ORDERID
 

to this one as a subquery
 
SELECT SUM(ORDERITEMS.qty*INVENTORY.PRICE) / COUNT(DISTINCT ORDERS.ORDERID) AS 'Orders_Average'
AS 'OrderItems_Average'
FROM ORDERITEMS LEFT OUTER JOIN
INVENTORY ON ORDERITEMS.PARTID = INVENTORY.PARTID RIGHT OUTER JOIN
ORDERS ON ORDERITEMS.ORDERID = ORDERS.ORDERID

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