Leetcode Problem 1077. Project Employees III

1077. Project Employees III

Leetcode Solutions

Using Common Table Expressions (CTEs) and MAX() Function

Create a CTE named project_and_employee that joins the Project and Employee tables on the employee_id column.
In the CTE, select project_id, employee_id, and experience_years.
Write a subquery to select the project_id and the maximum experience_years for each project, and alias it as max_experience.
In the main query, select project_id and employee_id from the CTE.
Join the CTE with the subquery on project_id and where the experience_years in the CTE equals the max_experience from the subquery.
Return the result of the main query.

erDiagram
    Project ||--o{ Employee : works_on
    Project {
        int project_id
        int employee_id
    }
    Employee {
        int employee_id
        varchar name
        int experience_years
    }

Using Window Functions

Ask Question

Programming Language

Purpose:

General Question

Debug My Code

image/screenshot of info(optional)

Full Screen

Leetcode Problem 1077. Project Employees III

Leetcode Solutions

Using Common Table Expressions (CTEs) and MAX() Function

Solution Idea

Query Steps

Code Implementation

Using Window Functions

Ask Question

Suggested Answer