SQL Editor
Tables and Columns
Customer
- Id
(int)
- FirstName
(nvarchar)
- LastName
(nvarchar)
- City
(nvarchar)
- Country
(nvarchar)
- Phone
(nvarchar)
Order
- Id
(int)
- OrderDate
(datetime)
- OrderNumber
(nvarchar)
- CustomerId
(int)
- TotalAmount
(decimal)
OrderItem
- Id
(int)
- OrderId
(int)
- ProductId
(int)
- UnitPrice
(decimal)
- Quantity
(int)
Product
- Id
(int)
- ProductName
(nvarchar)
- SupplierId
(int)
- UnitPrice
(decimal)
- Package
(nvarchar)
- IsDiscontinued
(bit)
Supplier
- Id
(int)
- CompanyName
(nvarchar)
- ContactName
(nvarchar)
- ContactTitle
(nvarchar)
- City
(nvarchar)
- Country
(nvarchar)
- Phone
(nvarchar)
- Fax
(nvarchar)
Task:
List the monthly average sales for the year 2013.
Click here
for details on
AVG
.
SELECT MONTH(OrderDate) AS 'Month', AVG(TotalAmount) AS 'Average Monthly Sales' FROM [Order] WHERE YEAR(OrderDate) = 2013 GROUP BY MONTH(OrderDate)
12 Records
Month
Average Monthly Sales
1
2103.321212
2
1420.937931
3
1332.663333
4
1796.754516
5
1775.740625
6
1302.933333
7
1680.755454
8
1514.596666
9
1614.405945
10
1850.750000
11
1350.392941
12
1614.088750
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in Austin, Texas. Vsn 1.3.0