176. Second Highest Salary
Leetcode 問題: 176. Second Highest Salary
Categories:
題目
找出 Employee
資料表第二高薪的薪水
- 若沒有第二高薪水的話則回傳 null
- 若第一高有兩個人,薪水一樣高,但沒其他人了,則第二高為 null
Employee 資料表
Id | Salary |
---|---|
1 | 100 |
2 | 200 |
3 | 300 |
4 | 100 |
# Write your MySQL query statement below
SELECT(
SELECT DISTINCT `Salary`
FROM `Employee`
ORDER BY `Salary` DESC
LIMIT 1 OFFSET 1
) as `SecondHighestSalary`