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배수빈: [SQL] Nth Highest Salary_250103

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	`1`	`+CREATE FUNCTION getNthHighestSalary(N INT) RETURNS INT`
	`2`	`+BEGIN`
	`3`	`+SET N = N-1;`
	`4`	`+ RETURN (`
	`5`	`+ # Write your MySQL query statement below.`
	`6`	`+ # Employee 테이블에서 n번째로 큰 급여를 반환하는 query를 작성`
	`7`	`+ # 만약에 n번째로 큰 급여 정보가 없다면, NULL을 반환`
	`8`	`+ SELECT DISTINCT salary`
	`9`	`+ FROM Employee`
	`10`	`+ ORDER BY salary DESC`
	`11`	`+ LIMIT 1 OFFSET N`
	`12`	`+ );`
	`13`	`+END`

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