Replace employee id with the unique identifier

#
# Table: Employees
# +---------------+---------+
# | Column Name   | Type    |
# +---------------+---------+
# | id            | int     |
# | name          | varchar |
# +---------------+---------+
# id is the primary key (column with unique values) for this table.
# Each row of this table contains the id and the name of an employee in a company.
# Table: EmployeeUNI
# +---------------+---------+
# | Column Name   | Type    |
# +---------------+---------+
# | id            | int     |
# | unique_id     | int     |
# +---------------+---------+
# (id, unique_id) is the primary key (combination of columns with unique values) for this table.
# Each row of this table contains the id and the corresponding unique id of an employee in the company.
# Write a solution to show the unique ID of each user, If a user does not have a unique ID replace just show null.
# Return the result table in any order.
# The result format is in the following example.
# Example 1:
# Input:
# Employees table:
# +----+----------+
# | id | name     |
# +----+----------+
# | 1  | Alice    |
# | 7  | Bob      |
# | 11 | Meir     |
# | 90 | Winston  |
# | 3  | Jonathan |
# +----+----------+
# EmployeeUNI table:
# +----+-----------+
# | id | unique_id |
# +----+-----------+
# | 3  | 1         |
# | 11 | 2         |
# | 90 | 3         |
# +----+-----------+
# Output:
# +-----------+----------+
# | unique_id | name     |
# +-----------+----------+
# | null      | Alice    |
# | null      | Bob      |
# | 2         | Meir     |
# | 3         | Winston  |
# | 1         | Jonathan |
# +-----------+----------+
# Explanation:
# Alice and Bob do not have a unique ID, We will show null instead.
# The unique ID of Meir is 2.
# The unique ID of Winston is 3.
# The unique ID of Jonathan is 1.
#

# Write your MySQL query statement below

SELECT eu.unique_id, e.name
FROM Employees e
LEFT JOIN EmployeeUNI eu ON e.id = eu.id;