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고다혜: [SQL] Restaurant Growth_240107

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	`1`	`+# AMOUNT OVER SUM TABLE`
	`2`	`+WITH AOST AS (`
	`3`	`+ SELECT`
	`4`	`+ visited_on,`
	`5`	+ SUM(amount) OVER(ORDER BY visited_on RANGE BETWEEN INTERVAL 6 DAY PRECEDING AND CURRENT ROW) `amount`,
	`6`	`+ MIN(visited_on) OVER() min_date`
	`7`	`+ FROM CUSTOMER`
	`8`	`+)`
	`9`	`+`
	`10`	`+SELECT`
	`11`	`+ DISTINCT(visited_on)`
	`12`	`+ , amount`
	`13`	+ , round(amount / 7, 2) `average_amount`
	`14`	`+FROM AOST`
	`15`	`+WHERE min_date + 6 <= visited_on`

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