Question

The president of the company wants a list of all orders ever taken. He wants to see the customer name, the last name of the employee who took the order, the shipper who shipped the order, the product that was ordered, the quantity that was ordered, and the date on which the order was placed. [Hint: You will need to join the following tables:

Customers, Employees, Shippers, Orders, OrderDetails, Products, and to get all of the necessary information.]
Query Number of records returned
[Source: w3schools.com] [Database Tables: Customers, Categories, Employees, OrderDetails, Orders, Products, Shippers, Suppliers]

Answer 1

The student needs to write an SQL query using INNER JOINs to combine data from the Customers, Employees, Shippers, Orders, OrderDetails, and Products tables to produce a list of all orders with specific details requested.

Step-by-step explanation:

The student's question pertains to the use of SQL (Structured Query Language) to retrieve data from multiple related tables in a database. By joining the Customers, Employees, Shippers, Orders, OrderDetails, and Products tables, the student can generate a comprehensive list that includes the customer name, the last name of the employee who took the order, the shipper, the product ordered, the quantity of the product, and the date of the order. This involves understanding of relational databases and the skill to write a complex SQL query that utilizes INNER JOINs to combine the data from multiple tables based on related keys.

Answer 2

To retrieve all order details in a single query, you can use the JOIN keyword to connect the necessary tables based on their relationships.

Step-by-step explanation:

Query to retrieve all orders details:

SELECT Customers.customerName, Employees.lastName, Shippers.shipperName, Products.productName, OrderDetails.quantity, Orders.orderDate FROM Customers JOIN Orders ON Customers.customerID = Orders.customerID JOIN OrderDetails ON Orders.orderID = OrderDetails.orderID JOIN Products ON OrderDetails.productID = Products.productID JOIN Employees ON Orders.employeeID = Employees.employeeID JOIN Shippers ON Orders.shipperID = Shippers.shipperID;

This query joins multiple tables in order to retrieve the required information. It uses the JOIN keyword to connect the relevant tables based on their primary and foreign key relationships. Each table is referenced with an alias to make the query more readable and manageable.

Example result:

customerName | lastName | shipperName | productName | quantity | orderDate

John Smith | Brown | Express Shipping | Widget A | 10 | 2022-01-05