SQL assignment completed

part1.sql

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+-- Write a query to display each customer’s name (as`Customer Name`) alongside the name of the employee who is responsible for that customer’s orders.
+-- * The employee name should be in a single `Sales Rep` column formatted as `lastName, firstName`. The output should be sorted alphabetically by customer name.
+
+SELECT customers.customerName AS 'Customer Name',
+concat(employees.lastName,' ', employees.firstName) AS 'Sales Rep'
+FROM customers, employees
+WHERE customers.salesRepEmployeeNumber = employees.employeeNumber
+ORDER BY customerName ASC;

part2.sql

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+-- * Determine which products are most popular with our customers.
+-- * For each product, list the total quantity ordered along with the total sale generated (total quantity ordered * priceEach) for that product.
+-- * The column headers should be `Product Name`, `Total # Ordered` and `Total Sale`.
+-- * List the products by `Total Sale` descending.
+
+
+SELECT productName AS 'Product Name',
+orderdetails.quantityOrdered AS 'Total # Orders', (orderdetails.quantityOrdered * orderdetails.priceEach) AS 'Total Sale'
+FROM products, orderdetails
+ORDER BY (orderdetails.quantityOrdered * orderdetails.priceEach) desc;
+
+

part3.sql

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+-- * Write a query which lists order status and the # of orders with that status.
+-- * Column headers should be `Order Status` and `# Orders`.
+-- * Sort alphabetically by `status`.
+
+
+SELECT quantityOrdered AS '# Orders', STATUS AS 'Orders Status'
+ from orderdetails, orders
+ ORDER BY STATUS asc;

part4.sql

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+
+-- * Write a query to list, for each product line, the total # of products sold from that product line.
+-- * The first column should be `Product Line` and the second should be `# Sold`.
+-- * Order by the second column descending.
+
+
+SELECT productLine AS 'Product Line', quantityOrdered AS '# Sold' FROM products, orderdetails
+WHERE products.productCode = orderdetails.productCode
+ORDER BY quantityOrdered desc;

part5.sql

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+-- * For each employee who represents customers, output the total # of orders that employee’s customers have placed alongside the total sale amount of those orders.
+-- * The employee name should be output as a single column named `Sales Rep` formatted as `lastName, firstName`.
+-- * The second column should be titled `# Orders` and the third should be `Total Sales`.
+-- * Sort the output by `Total Sales` descending.
+-- * Only (and all) employees with the job title `Sales Rep` should be included in the output, and if the employee made no sales the `Total Sales` should display as `0.00`.
+
+
+SELECT concat(employees.lastName, ' ', employees.firstName) AS 'Sales Rep', orderdetails.quantityOrdered AS '# Order', payments.amount AS 'Total Sales'
+FROM employees, orderdetails, payments, customers, orders
+WHERE customers.salesRepEmployeeNumber = employees.employeeNumber AND customers.customerNumber = payments.customerNumber  AND 
+orderdetails.orderNumber = orders.orderNumber ORDER BY payments.amount desc;
+

part6.sql

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+
+-- * Your product team is requesting data to help them create a bar-chart of monthly sales since the company’s inception.
+-- * Write a query to output the month (January, February, etc.), 4-digit year, and total sales for that month.
+-- * The first column should be labeled `Month`, the second `Year`, and the third should be `Payments Received`.
+-- * Values in the third column should be formatted as numbers with two decimals – for example: `694,292.68`.
+
+
+SELECT YEAR(paymentDate) AS Year, MONTH(paymentDate) AS Month, SUM(amount) AS 'Payment Received'
+FROM payments
+GROUP BY YEAR(paymentDate), MONTH(paymentDate);