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이예진: [SQL] Trips and Users_241128

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	`1`	`+WITH NOT_BANNED AS(`
	`2`	`+ SELECT users_id`
	`3`	`+ FROM Users`
	`4`	`+ WHERE banned = 'No'`
	`5`	`+)`
	`6`	`+SELECT`
	`7`	`+ request_at Day,`
	`8`	`+ ROUND(`
	`9`	`+ SUM(CASE`
	`10`	`+ WHEN status LIKE 'cancelled_by%' THEN 1`
	`11`	`+ ELSE 0`
	`12`	`+ END) / COUNT(id)`
	`13`	`+ ,2) 'Cancellation Rate'`
	`14`	`+FROM Trips t`
	`15`	`+WHERE t.client_id IN (SELECT users_id FROM NOT_BANNED)`
	`16`	`+ AND t.driver_id IN (SELECT users_id FROM NOT_BANNED)`
	`17`	`+ AND request_at BETWEEN '2013年10月01日' AND '2013年10月03日'`
	`18`	`+GROUP BY request_at`

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