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백제완: [SQL] Department Top Three Salaries_241210

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	`1`	`+SELECT`
	`2`	+ B.name `Department`
	`3`	+ , A.name `Employee`
	`4`	+ , A.salary `Salary`
	`5`	`+FROM`
	`6`	`+ Employee A`
	`7`	`+ INNER JOIN Department B`
	`8`	`+ ON A.departmentId = B.id`
	`9`	`+WHERE`
	`10`	`+ (`
	`11`	`+ SELECT COUNT(DISTINCT salary)`
	`12`	`+ FROM Employee C`
	`13`	`+ WHERE departmentId = A.departmentId AND salary >= A.salary`
	`14`	`+ ) <= 3`
	`15`	`+ORDER BY`
	`16`	`+ Department`
	`17`	`+ , Salary DESC`

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