CREATE FUNCTION getNthHighestSalary(N INT) RETURNS INT
BEGIN
DECLARE M INT;
SET M = N - 1;
RETURN (
# Write your MySQL query statement below.
SELECT IFNULL((SELECT DISTINCT Salary FROM Employee ORDER BY Salary DESC LIMIT M,1),NULL)
);
END
MYSQL声明定义函数
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转载自blog.csdn.net/Fly_as_tadpole/article/details/82025422
周排行