[1667] Fix Names in a Table

 

Fix Names in a Table - LeetCode

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.

 

Example 1:

Input: 
Users table:
+---------+-------+
| user_id | name  |
+---------+-------+
| 1       | aLice |
| 2       | bOB   |
+---------+-------+
Output: 
+---------+-------+
| user_id | name  |
+---------+-------+
| 1       | Alice |
| 2       | Bob   |
+---------+-------+

 

문제 조건 

- 첫 글자는 대문자 나머지는 소문자로 변화 

 

SELECT user_id
        ,CONCAT(UPPER(LEFT(name,1)),LOWER(SUBSTRING(name,2))) AS name
FROM Users
ORDER BY user_id

# INITCAP은 MySQL에서 지원하지 않음