Question

Select Query Join and SUM

Asked by: upgraders

I have a query that I need to join three tables, however one table I simply want to query a SUM.


Basically I have a list of Parts with Part numbers and other inprtant product information (Product_Table)  and another table with the similar information but represent a list of parts in stock (LAMBOOC). So the first join just is a one to one so I have the list of parts in stock and accompanying information from the Product_Table. The 2rd table is a list of item ordered and quanities. (OrderItems) I want to do a SUM of the total of each item sold grouped by PN so that my final record set will have the data from the first two tables and then a total sold (Qty) from the 3rd table.

Here is what I have tried but it does not work:

SELECT     LAMBOOC.PN, LAMBOOC.TOTALQTY, LAMBOOC.realTotal, LAMBOOC.RealPrice
FROM         Product_Table INNER JOIN
                      LAMBOOC ON Product_Table.PN = LAMBOOC.PN LEFT OUTER JOIN
                      OrderItems
                          (SELECT     SUM(qty)
                            FROM          OrderItems
                            GROUP BY PN) AS QTYP ON LAMBOOC.PN = OrderItems.PN

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Asked On
2009-11-07 at 19:03:01ID24881155
Topics

SQL Query Syntax

,

Databases Miscellaneous

Participating Experts
1
Points
500
Comments
2

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Answers

 

by: rrjegan17Posted on 2009-11-07 at 19:09:02ID: 25769273

This should do

 

by: rrjegan17Posted on 2009-11-07 at 19:09:20ID: 25769274

Oops.. Missed attachment

SELECT LAMBOOC.PN, LAMBOOC.TOTALQTY, LAMBOOC.realTotal, LAMBOOC.RealPrice, QTYP.total_qty
FROM Product_Table 
INNER JOIN LAMBOOC ON Product_Table.PN = LAMBOOC.PN 
LEFT OUTER JOIN (SELECT PN, SUM(qty) total_qty
                            FROM  OrderItems
                            GROUP BY PN) AS QTYP ON LAMBOOC.PN = QTYP.PN

                                              
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