asked on

Sql code example

I am looking for perhaps a more professional way to code this...

Given the following tables and sample data:

create table Company ( CompanyID int, CompanyName varchar(30) )
insert Company values (1,'Acme Construction')
insert Company values (2,'AAA Buildings')

create table Item ( ItemID int, ItemName varchar(10), UnitCost money )
insert Item values ( 1, 'Widget', 1.00) -- each unit $1
insert Item values ( 2, 'Sprocket', 2.00) -- each unit $2

create table ItemOrder ( ItemOrderID int, CompanyID int, ItemID int, OrderDate datetime, UnitsOrdered int )
insert ItemOrder values ( 1, 1, 1, '10/5/05', 3 ) -- Acme orders 3 widgets on 10/5
insert ItemOrder values ( 2, 2, 2, '11/1/05', 1 ) -- AAA Buildings orders 1 sprocket on 11/1

My manager says: I want a full listing of all orders for the month of October 2005.

The result set should be:
CompanyName, ItemName, OrderDate, UnitsOrdered, TotalOrderCost

Can anyone show me example code on a way to achieve this? I am learning and would love to see an experienced way of doing this.
Thanks.

ASKER CERTIFIED SOLUTION

infolurk

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dbaSQL

SELECT
      c.CompanyName,
      i.ItemName,
      io.OrderDate,
      SUM(io.UnitsOrdered) [UnitsOrdered],
      io.UnitsOrdered * i.UnitCost [TotalOrderCost]
FROM
      dbo.Company c JOIN dbo.ItemOrder io
       ON c.CompanyID = io.CompanyID JOIN dbo.Item i
       ON io.ItemID = i.ItemID
WHERE
      io.OrderDate >= '11/1/05'
      AND io.OrderDate < '12/1/05'
GROUP BY
      c.CompanyName,
      i.ItemName,
      io.OrderDate,
      io.UnitsOrdered,
      i.UnitCost

tesla764

ASKER

Thanks.

tesla764

ASKER

Thanks again. This has been very helpful.