Question

2504. Concatenate the Name and the Profession

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Description

Table: Person

+-------------+---------+
| Column Name | Type  |
+-------------+---------+
| person_id   | int   |
| name    | varchar |
| profession  | ENUM  |
+-------------+---------+
person_id is the primary key (column with a unique value) for this table.
Each row in this table contains a person's ID, name, and profession.
The profession column in an enum of the type ('Doctor', 'Singer', 'Actor', 'Player', 'Engineer', or 'Lawyer')

 

Write a solution to report each person's name followed by the first letter of their profession enclosed in parentheses.

Return the result table ordered by person_id in descending order.

The result format is shown in the following example.

 

Example 1:

Input: 
Person table:
+-----------+-------+------------+
| person_id | name  | profession |
+-----------+-------+------------+
| 1     | Alex  | Singer   |
| 3     | Alice | Actor    |
| 2     | Bob   | Player   |
| 4     | Messi | Doctor   |
| 6     | Tyson | Engineer   |
| 5     | Meir  | Lawyer   |
+-----------+-------+------------+
Output: 
+-----------+----------+
| person_id | name   |
+-----------+----------+
| 6     | Tyson(E) |
| 5     | Meir(L)  |
| 4     | Messi(D) |
| 3     | Alice(A) |
| 2     | Bob(P)   |
| 1     | Alex(S)  |
+-----------+----------+
Explanation: Note that there should not be any white space between the name and the first letter of the profession.

Solutions

Solution 1

# Write your MySQL query statement below
SELECT person_id, CONCAT(name, "(", SUBSTRING(profession, 1, 1), ")") AS name
FROM Person
ORDER BY person_id DESC;