Question: Write a query that returns a row for each customer, a count of invoices for each customer, the total extended price of all invoices, the

Write a query that returns a row for each customer, a count

of invoices for each customer, the total extended price of all invoices,

the min value, and the max value of the invoice total.

To get the total value of an invoice, you have

to sum up the extended price value in the InvoiceLines table.

we use the Invoices, InvoiceLines, and Customers

tables. The first two tables join on the InvoiceID column. Customers joins

to Invoices on the CustomerID. Order the results by the

count of invoices (lDESC), then by the largest invoice (ASC).

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