LeetCode 1667. Fix Names in a Table

Description

https://leetcode.com/problems/fix-names-in-a-table/

SQL Schema

Table: Users

+----------------+---------+
| Column Name    | Type    |
+----------------+---------+
| user_id        | int     |
| name           | varchar |
+----------------+---------+
user_id is the primary key for this table.
This table contains the ID and the name of the user. The name consists of only lowercase and uppercase characters.

Write an SQL query to fix the names so that only the first character is uppercase and the rest are lowercase.

Return the result table ordered by user_id.

The query result format is in the following example:

Users table:
+---------+-------+
| user_id | name  |
+---------+-------+
| 1       | aLice |
| 2       | bOB   |
+---------+-------+

Result table:
+---------+-------+
| user_id | name  |
+---------+-------+
| 1       | Alice |
| 2       | Bob   |
+---------+-------+

Explanation

Use CONCAT, UCASE, LCASE, LEFT AND SUBSTRING

SQL Solution

# Write your MySQL query statement below
select user_id, CONCAT(UCASE(LEFT(name, 1)), LCASE(SUBSTRING(name, 2))) as name from Users order by user_id asc