--MySQL DB 생성
CREATE DATABASE mydb CHARACTER SET utf8 COLLATE utf8_bin; 
grant all privileges on mydb .* to 'user'@'localhost' IDENTIFIED BY 'userPwd';

mysql>  SHOW COLLATION WHERE `Default` = 'Yes' and Collation like 'utf%';



+--------------------+---------+----+---------+----------+---------+
| Collation          | Charset | Id | Default | Compiled | Sortlen |
+--------------------+---------+----+---------+----------+---------+
| utf8_general_ci    | utf8    | 33 | Yes     | Yes      |       1 |
| utf8mb4_general_ci | utf8mb4 | 45 | Yes     | Yes      |       1 |
| utf16_general_ci   | utf16   | 54 | Yes     | Yes      |       1 |
| utf16le_general_ci | utf16le | 56 | Yes     | Yes      |       1 |
| utf32_general_ci   | utf32   | 60 | Yes     | Yes      |       1 |
+--------------------+---------+----+---------+----------+---------+
5 rows in set (0.00 sec)