Completed join and group exercise

part1.sql

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+SELECT concat(firstName,' ', lastName) AS 'Sales Rep', employeeNumber, salesRepEmployeeNumber, customerName 
+FROM employees, customers
+WHERE employeeNumber = salesRepEmployeeNumber
+ORDER BY customerName 
+
+

part2.sql

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+SELECT  SUM(quantityOrdered)*SUM(priceEach) AS 'Total Sale', productName AS 'Product Name', SUM(quantityOrdered) AS 'Total # Ordered'
+FROM orderdetails, products
+WHERE products.productCode = orderdetails.productCode
+GROUP BY orderdetails.productCode
+ORDER BY  SUM(quantityOrdered)*SUM(priceEach) DESC;

part3.sql

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+SELECT status AS 'Order Status', COUNT(status) AS '# Orders'
+FROM orders
+GROUP BY status;
+

part4.sql

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+SELECT productLine AS 'Product Line' ,COUNT(quantityOrdered) As '# Sold'
+FROM products, orderdetails
+WHERE products.productCode = orderdetails.productCode
+GROUP BY  productLine
+ORDER By COUNT(quantityOrdered) DESC;

part5.sql

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+SELECT concat (lastName,',',firstName) AS 'Sales Rep', COUNT(quantityOrdered) AS 'Total # Ordered', COUNT(quantityOrdered)*SUM(priceEach) AS 'Total Sales'
+FROM employees,customers,orderdetails, orders
+WHERE customers.salesRepEmployeeNumber = employees.employeeNumber and orders.orderNumber = orderdetails.orderNumber AND employees.jobTitle = 'Sales Rep'
+GROUP BY employeeNumber
+ORDER BY  COUNT(quantityOrdered)*SUM(priceEach) DESC;

part6.sql

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+SELECT MONTH(paymentDate) AS Month, YEAR(paymentDate) AS Year, SUM(amount) AS 'Payments Recieved'
+FROM payments
+GROUP by Month
+ORDER BY Year, Month;