Commit 5eea968

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GROUP BY & Joined Queries

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Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,13 @@`
`1`	`1`	`SELECT booking_date, SUM(num_guests)`
`2`	`2`	`FROM bookings`
`3`	`3`	`GROUP BY booking_date;`
	`4`	`+`
	`5`	`+SELECT p.name, SUM(b.num_guests)`
	`6`	`+FROM payment_methods AS p`
	`7`	`+INNER JOIN bookings AS b ON p.id = b.payment_id`
	`8`	`+GROUP BY p.name;`
	`9`	`+`
	`10`	`+SELECT p.name, b.booking_date, SUM(b.num_guests), ROUND(AVG(amount_tipped), 2)`
	`11`	`+FROM payment_methods AS p`
	`12`	`+INNER JOIN bookings AS b ON p.id = b.payment_id`
	`13`	`+GROUP BY p.name, b.booking_date;`

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