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Update invoices-per-country.sql #1

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Update invoices-per-country.sql #1

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12 changes: 7 additions & 5 deletions invoices-per-country.sql
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Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
SELECT co.country_name, count(*), AVG(i.total_price)
FROM country co, city ci, customer cu, invoice i
WHERE co.id = ci.country_id AND ci.id = cu.city_id AND cu.id = i.customer_id
GROUP BY co.country name
HAVING AVG(i.total_price) > (SELECT AVG(total price))
SELECT co.country_name, COUNT(*) AS invoice_count, AVG(i.total_price) AS avg_total_price
FROM country co
INNER JOIN city ci ON co.id = ci.country_id
INNER JOIN customer cu ON ci.id = cu.city_id
INNER JOIN invoice i ON cu.id = i.customer_id
GROUP BY co.country_name
HAVING AVG(i.total_price) > (SELECT AVG(total_price) FROM invoice);