Lab3.SQL

1)##Generating Invoice Reports
AdventureWorks Cycles sells directly to retailers, who must be invoiced for their orders. You have been tasked with writing a query to generate a list of invoices to be sent to customers.
##Write a query that returns the company name from the SalesLT.Customer table, the sales order ID and total due from the SalesLT.SalesOrderHeader table. Make sure to use the aliases provided, and default column names elsewhere.

SELECT c.CompanyName, oh.SalesOrderID, oh.TotalDue
FROM SalesLT.Customer AS c
JOIN SalesLT.SalesOrderHeader AS oh
ON oh.CustomerID = c.CustomerID;

2)##Generating Invoice Reports (2)
In order to send out invoices to the customers, you'll need their addresses.
##Extend your customer orders query to include the main office address for each customer, including the full street address, city, state or province, postal code, and country or region. Make sure to use the aliases provided, and default column names elsewhere.

SELECT c.CompanyName, a.AddressLine1, ISNULL(a.AddressLine2, '') AS AddressLine2, a.City, a.StateProvince, a.PostalCode, a.CountryRegion, oh.SalesOrderID, oh.TotalDue
FROM SalesLT.Customer AS c
JOIN SalesLT.SalesOrderHeader AS oh
ON oh.CustomerID = c.CustomerID
JOIN SalesLT.CustomerAddress AS ca
ON c.CustomerID = ca.CustomerID AND AddressType = 'Main Office'
JOIN SalesLT.Address AS a
ON ca.AddressID = a.AddressID;

3)##Retrieving Sales Data
The sales manager wants a list of all customer companies and their contacts (first name and last name), showing the sales order ID and total due for each order they have placed.
##Customers who have not placed any orders should be included at the bottom of the list with NULL values for the order ID and total due. Make sure to use the aliases provided, and default column names elsewhere.

SELECT c.CompanyName, c.FirstName, c.LastName, oh.SalesOrderID, oh.TotalDue
FROM SalesLT.Customer AS c
LEFT JOIN SalesLT.SalesOrderHeader AS oh
ON c.CustomerID = oh.CustomerID
ORDER BY oh.SalesOrderID DESC;

4)##Retrieving Sales Data (2)
A sales employee has noticed that AdventureWorks does not have address information for all customers.
##Write a query that returns a list of customer IDs, company names, contact names (first name and last name), and phone numbers for customers with no address stored in the database. Make sure to use the aliases provided, and default column names elsewhere.

SELECT c.CompanyName, c.FirstName, c.LastName, c.Phone
FROM SalesLT.Customer AS c
LEFT JOIN SalesLT.CustomerAddress AS ca
ON c.CustomerID = ca.CustomerID
WHERE ca.AddressID IS NULL;

5)##Retrieving Sales Data (3)
Some customers have never placed orders, and some products have never been ordered.
##Write a query that returns a column of customer IDs for customers who have never placed an order, and a column of product IDs for products that have never been ordered.
Each row with a customer ID should have a NULL product ID (because the customer has never ordered a product) and each row with a product ID should have a NULL customer ID (because the product has never been ordered by a customer).
Make sure to use the aliases provided, and default column names elsewhere.

SELECT c.CustomerID, p.ProductID
FROM SalesLT.Customer AS c
FULL JOIN SalesLT.SalesOrderHeader AS oh
ON c.CustomerID = oh.CustomerID
FULL JOIN SalesLT.SalesOrderDetail AS od
ON od.SalesOrderID = oh.SalesOrderID
FULL JOIN SalesLT.Product AS p
ON p.ProductID = od.ProductID
WHERE oh.SalesOrderID IS NULL
ORDER BY ProductID, CustomerID;