
문제Column NameTypeidintsalaryint[Table : Employee]id is the primary key (column with unique values) for this table.Each row of this table contains information about the salary of an employee. Write a solution to find the second highest distinct salary from the Employee table. If there is no second highest salary, return null 주어진 Employee 테이블에서 두 번째로 높은 급여를 조회해라. 두 번째 급여가 없다면 null을 조회해라. 풀이SELECT..