Leetcode数据库无锁题答题记录
175. Combine Two Tables # Write your MySQL query statement below select FirstName, LastName, City, State from Person left join Address on Person.PersonId = Address.PersonId; 176. Second Highest Salary # Write your MySQL query statement below select max(Salary) as SecondHighestSalary from Employee where Salary != (select max(Salary) from Employee); 177.